Physics Physics Practice Problems Solutions Library

# Relative Velocity in 2D Solutions Library

Access 52 Relative Velocity in 2D video and text solutions to help you complete your homework. Need to revisit the concept? Watch our Relative Velocity in 2D learn videos.

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52 solutions

Relative Velocity in 2D

#### Q. A swimmer wants to cross a river, from point A to point B, as shown in the figure. The distance d1 (from A to C) is 200 m, the distance d2 (from C ...

Solved • Jul 16, 2020

Relative Velocity in 2D

#### Q. An airplane is flying in a jet stream that is blowing at 45.0 m/s in a direction 20° south of east. Its direction of motion relative to the Earth i...

Solved • Jul 16, 2020

Relative Velocity in 2D

#### Q. A swimmer wants to cross a river, from point A to point B, as shown in the figure. The distance (from A to C) is 200 m, the distance (from C to B) ...

Solved • May 21, 2020

Relative Velocity in 2D

#### Q. If you toss a coin straight upward while in a train moving at constant velocity, the coin will land A) as if you were at rest. B) in front of you. ...

Solved • May 18, 2020

Relative Velocity in 2D

#### Q. If two points are in a common reference frame, thena) They are not in motion relative to each other.b) They are not accelerating relative to each o...

Solved • May 1, 2020

Relative Velocity in 2D

#### Q. What is the resultant velocity vector when you add your swimming velocity and the velocity of a river current? Give the x and y components in meter...

Solved • Apr 9, 2020

Relative Velocity in 2D

#### Q. A canoe has a velocity of 0.400 m/s southeast relative to the earth. The canoe is on a river that is flowing at 0.460 m/s east relative to the eart...

Solved • Mar 25, 2020

Relative Velocity in 2D

#### Q. A boat can travel 2.30 m/s in still water.If the boat points its prow directly across a stream whose current is 1.60 m/s , what is the magnitude o...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A boat is traveling where there is a current of 0.20 m/s east. To avoid some offshore rocks, the boat must clear a buoy that is NNE (22.5) and 2.8...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A light plane is headed due south with a speed relative to still air of 175  km/h. After 1.00 h, the pilot notices that they have covered only 145 ...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. The speed of a boat in still water is v. The boat is to make a round trip in a river whose current travels at speed exttip{u}{u}.Derive a formula ...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. Two cars approach a street corner at right angles to each other (as show in the figure). Car 1 travels at 35 km/h and car 2 at 45 km/h. Assume that...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A swimmer is capable of swimming 0.75 m/s in still water.If she aims her body directly across a 60 m -wide river whose current is 0.55 m/s , how f...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A swimmer is capable of swimming 0.80 m/s in still water.(a) At what upstream angle must the swimmer aim, if she is to arrive at a point directly a...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A motorboat whose speed in still water is 4.10 m/s must aim upstream at an angle of 18.6 o (with respect to a line perpendicular to the shore) in...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A boat, whose speed in still water is 2.70 m/s, must cross a 280 m-wide river and arrive at a point 120 m upstream from where it starts. To do so, ...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. An airplane, whose air speed is 560 km/h, is supposed to fly in a straight path 36.0° N of E. But a steady 82 km/h wind is blowing from the north. ...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. Huck Finn walks at a speed of 0.70 m/s across his raft (that is, he walks perpendicular to the rafts motion relative to the shore). The raft is tra...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A child, who is 45 m from the bank of a river, is being carried helplessly downstream by the rivers swift current of 1.0 m/s. As the child passes a...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A passenger on a boat moving at 1.70 m/s on a still lake walks up a flight of stairs at a speed of 0.60 m/s,as shown in the figure . The stairs are...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A person in the passenger basket of a hot-air balloon throws a ball horizontally outward from the basket with speed 10.0 m/s .What initial velocity...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. An airplane is heading due south at a speed of 560 km/h . If a wind begins blowing from the southwest at a speed of 80.0 km/h (average).Calculate ...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. An airplane is heading due south at a speed of 580 km/h. If a wind begins blowing from the southwest at a speed of 90.0 km/h (average), in what dir...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. Two rowers, who can row at the same speed in still water, set off across a river at the same time. One heads straight across and is pulled downstre...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A canoe has a velocity of 0.43 m/s southeast relative to the earth. The canoe is on a river that is flowing 0.53 m/s east relative to the earth.Y...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A river flows due south with a speed of 2.1 m/s . You steer a motorboat across the river; your velocity relative to the water is 4.1 m/s ...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. Canada geese migrate essentially along a north-south direction for well over a thousand kilometers in some cases, traveling at speeds up to about 1...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A 400.0-m-wide river flows from west to east at 30.0 m/min. Your boat moves at 110 m/min relative to the water no matter which direction you point...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A river flows from south to north at 5.0 km/h . On this river, a boat is heading east to west perpendicular to the current at 8.5 km/h .As vi...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. You are a member of a geological team in Central Africa. Your team comes upon a wide river that is flowing east. You must determine the width of th...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. In a World Cup soccer match, Juan is running due north toward the goal with a speed of 7.60 m/s relative to the ground. A teammate passes the ball...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. Two soccer players, Mia and Alice, are running as Alice passes the ball to Mia. Mia is running due north with a speed of 6.10 m/s . The velocity of...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. An airplane pilot sets a compass course due west and maintains an airspeed of 218 km/h . After flying for a time of 0.500 h , she finds herself ove...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A river flows due south with a speed of 2.0 m/s. A man steers a motorboat across the river. The river is 800 m wide.In which direction should the m...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. An airplane pilot wishes to fly due west. A wind of 82.0 km/h is blowing toward the south.If the airspeed of the plane (its speed in still air) is...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. The nose of an ultralight plane is pointed south, and its airspeed indicator shows 36 m/s . The plane is in a 16 m/s wind blowing toward the south...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. Zack is driving past his house in . He wants to toss his physics book out the window and have it land in his driveway.If he lets go of the book...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. In , Yvette and Zack are driving down the freeway side by side with their windows down. Zack wants to toss his physics book out the window and ...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A child in danger of drowning in a river is being carried down-stream by a current that flows uniformly with a speed of 2.20 m/s . The child is 400...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. Ships A and B leave port together. For the next two hours, ship A travels at 20 mph in a direction 30° west of north while ship B travels 20° east ...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A kayaker needs to paddle north across a 100-m-wide harbor. The tide is going out, creating a tidal current that flows to the east at 2.0 m/s. The ...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. While driving north at 25 m/s during a rainstorm you notice that the rain makes an angle of 38° with the vertical. While driving back home moments ...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. Mary needs to row her boat across a 160 m-wide river that is flowing to the east at a speed of 1.3 m/s. Mary can row with a speed of 3.1 m/s. If Ma...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A flock of ducks is trying to migrate south for the winter, but they keep being blown off course by a wind blowing from the west at 6.0 m/s . A...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. The pilot of an airplane notes that the compass indicates a heading due west. The airplane's speed relative to the air is 150 km/h. The air is movi...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. An airplane maintains a speed of 630 km/h relative to the air it is flying through as it makes a trip to a city 750 km away to the north. (a) What ...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. Lisa in her Lamborghini accelerates at the rate of (3.00i - 2.00j) m/s  2, while Jill in her Jaguar accelerates at (1.00i + 3.00j) m/s2. They both ...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. Towns A and B in Figure P4.64 are 80.0 km apart. A couple arranges to drive from town A and meet a couple driving from town B at the lake L. The tw...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A jet airliner moving initially at 300 mi/h to the east suddenly enters a region where the wind is blowing at 100 mi/h toward the direction 30.0° n...

Solved • Oct 29, 2018

Relative Velocity in 2D

#### Q. A river runs downhill with speed v R. A boat crosses the river with speed v B (both with respect to the river), making an angle α uphill perpendicu...

Solved • May 29, 2017

Relative Velocity in 2D

#### Q. A river lies in the east - west direction. The current in the river has a velocity relative to the ground of 3 mi/hr toward the east. A boat has a ...

Solved • May 29, 2017

Relative Velocity in 2D

#### Q. A river lies in the east - west direction. The current in the river has a velocity relative to the ground of 3 mi/hr toward the east. A boat has a ...

Solved • May 29, 2017