Sections | |||
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Intro to 2D Motion | 32 mins | 0 completed | Learn |

Projectile Motion | 67 mins | 0 completed | Learn |

More Projectile Motion | 42 mins | 0 completed | Learn |

Initial Velocity in Projectile Motion | 20 mins | 0 completed | Learn |

Circular Motion | 27 mins | 0 completed | Learn |

Solution: 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 perpendicular to the river (see figure). What is the speed of the boat with respect to the ground?

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 perpendicular to the river (see figure). What is the speed of the boat with respect to the ground?

A river lies in the east - west direction. The cur...

A river runs downhill with speed v R. A boat cross...

A person going for a morning jog on the deck of a ...

Two cars approach a street corner at right angles ...

Anita is running to the right at 5 m/s
in
...

A girl moving at 8 m/s on in-line skates is overta...

In a World Cup soccer match, Juan is running due n...

Two soccer players, Mia and Alice, are running as ...

A moving beltway at an airport has a speed v1 and ...

A police car traveling at 95.0 km/h is traveling w...

Susan, driving north at 56 mph , and Shawn, drivin...

Lisa in her Lamborghini accelerates at the rate of...

Towns A and B in Figure P4.64 are 80.0 km apart. A...

A person in the passenger basket of a hot-air ball...

Raindrops make an angle heta with the vertical wh...

Zack is driving past his house in
. He wants t...

In
, Yvette and Zack are driving down the free...

When a trains velocity is 12.0 m/s eastward, rain...

An elevator is moving upward at a constant speed o...

You are driving south on a highway at 25 m/s (appr...

A car travels due east with a speed of 50.0 km/h. ...

A bolt drops from the ceiling of a moving train ca...

When the moving sidewalk at the airport is broken,...

A "moving sidewalk" in an airport terminal buildin...

An airplane pilot wishes to fly due west. A wind o...

An airplane is heading due south at a speed of 560...

An airplane, whose air speed is 560 km/h , is supp...

A light plane is headed due south with a speed rel...

An airplane pilot sets a compass course due west a...

The pilot of an airplane notes that the compass in...

An airplane maintains a speed of 630 km/h relative...

Canada geese migrate essentially along a north-sou...

A jet airliner moving initially at 300 mi/h to the...

City A lies directly west of city B. When there is...

A flock of ducks is trying to migrate south for th...

In an air race, an airplane flies from a point dir...

The nose of an ultralight plane is pointed south, ...

City A lies directly west of city B. When there is...

Two piers, A and B, are located on a river: B is 1...

Huck Finn walks at a speed of 0.70 m/s across his ...

A river flows due south with a speed of 2.0 m/s. A...

A child, who is 45 m from the bank of a river, is ...

A boat’s speed in still water is 1.80 m/s .
The bo...

A passenger on a boat moving at 1.70 m/s on a stil...

A swimmer is capable of swimming 0.75 m/s in stil...

A swimmer is capable of swimming 0.80 m/s in stil...

A kayaker needs to paddle north across a 100-m-wid...

A motorboat whose speed in still water is 4.10 m/s...

The speed of a boat in still water is v. The boat ...

A child in danger of drowning in a river is being ...

A boat can travel 2.30 m/s in still water.If the ...

A boat is traveling where there is a current of 0....

Two students are canoeing on a river. While headin...

A river has a steady speed of 0.500 m/s. A student...

A river flows with a steady speed v. A student swi...

A river flows due south with a speed of
2.1 m...

You are a member of a geological team in
Central A...

Two rowers, who can row at the same speed in still...

A 400.0-m-wide river flows from west to east at 30...

A boat takes 3.30 hours to travel 35.0 km down a...

Mary needs to row her boat across a 160 m -wide ri...

A canoe has a velocity of 0.43 m/s southeast rela...

A river lies in the east - west direction. The cur...

A boat moves through the water of a river at 15.8 ...

Ships A and B leave port together. For the next tw...

While driving north at 25 m/s during a rainstorm y...

An airplane is heading due south at a speed of 580...

A boat, whose speed in still water is 2.70 m/s, mu...

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