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Intro to Motion (Kinematics) Solutions Library

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42 solutions

Intro to Motion (Kinematics)

Q. You can enter units that are combinations of units with prefixes. However, you must maintain the same unit system given in the problem. For example...

Solved • Jul 15, 2020

Intro to Motion (Kinematics)

Q. During a baseball game, a baseball is struck at ground level by a batter. The ball leaves the baseball bat with an initial velocity v0 = 25 m/s at ...

Solved • Jul 14, 2020

Intro to Motion (Kinematics)

Q. A car traveling at 30 m/s runs out of gas while traveling up a 5 degree slope. How far will it coast before starting to roll back down?

Solved • Jun 2, 2020

Intro to Motion (Kinematics)

Q. In the year 1178. five monks at Canterbury Cathedral in England observed what appeared to be an asteroid colliding with the moon, causing a red glo...

Solved • May 21, 2020

Intro to Motion (Kinematics)

Q. An object at rest near the surface of a distant planet starts to fall freely. If the acceleration there is twice that of the Earth, its speed one s...

Solved • May 18, 2020

Intro to Motion (Kinematics)

Q. A car traveling at speed v takes distance d to stop after the brakes are applied. What is the stopping distance if the car is initially traveling a...

Solved • May 5, 2020

Intro to Motion (Kinematics)

Q. 6. A car accelerates at 2 meters per second per second. Assuming the car starts from rest, how much time does it need to accelerate to a speed of 3...

Solved • Apr 29, 2020

Intro to Motion (Kinematics)

Q. 8. An object covers a distance of 8 meters in the first second of travel another 8 meters during the next second, and 8 meters again during the thi...

Solved • Apr 28, 2020

Intro to Motion (Kinematics)

Q. 5. A ball is thrown 125 meters upward and then falls the same distance back to Earth. Neglecting air resistance, its total time in the air isA) abo...

Solved • Apr 28, 2020

Intro to Motion (Kinematics)

Q. 3. A man leans over the edge of a cliff and throws a rock upward at 4.9 m/s. Neglecting air resistance, two seconds later the rock's speed is A) 9....

Solved • Apr 28, 2020

Intro to Motion (Kinematics)

Q. 2. If an object moves with constant acceleration, its velocity mustA) be constant also. B) always decrease. C) change by the same amount each secon...

Solved • Apr 28, 2020

Intro to Motion (Kinematics)

Q. When striking, the pike, a predatory fish, can accelerate from rest to a speed of 3.9m/s in 0.12s.a) What is the acceleration of the pike during th...

Solved • Apr 28, 2020

Intro to Motion (Kinematics)

Q. When jumping, a flea rapidly extends its legs, reaching a takeoff speed of 1.0 m/s over a distance of 0.50mm. What is the flea's acceleration as it...

Solved • Apr 24, 2020

Intro to Motion (Kinematics)

Q. 1. The two measurements necessary for calculating average speed are A) distance and accelerationB) acceleration and timeC) velocity and distanceD) ...

Solved • Apr 24, 2020

Intro to Motion (Kinematics)

Q. You begin sliding down a 15° ski slope. Ignoring friction and air resistance, how fast will you be moving after 10s?

Solved • Apr 24, 2020

Intro to Motion (Kinematics)

Q. In an 8.00km race, one runner runs at a steady 11.8 km/hr and another runs at 15.0 km/hr. How far from the finish line is the slower runner when th...

Solved • Apr 23, 2020

Intro to Motion (Kinematics)

Q. One of the difficulties in studying mechanics is that many common words are used with highly specific technical meanings, among them velocity, acce...

Solved • Apr 23, 2020

Intro to Motion (Kinematics)

Q. 1. The slope at a point on a position-versus-time graph of an object isa. the object's speed at that point.b. the object's average velocity at that...

Solved • Apr 21, 2020

Intro to Motion (Kinematics)

Q. Part AHow much time does it take light to travel from the moon to the earth, a distance of 384,000 km?Part BLight from the star Sirius takes 8.61 y...

Solved • Apr 14, 2020

Intro to Motion (Kinematics)

Q. Consider the following situations: a. A car is moving along a straight road at a constant speed. b. A car is moving along a straight road while slo...

Solved • Apr 8, 2020

Intro to Motion (Kinematics)

Q. A football is kicked straight up into the air; it hits the ground 4.4s later. (a) What was the greatest height reached by the ball?(b)  Assume it i...

Solved • Apr 7, 2020

Intro to Motion (Kinematics)

Q. If the cart is moving on the positive x-axis, the x-component of velocity must be negative. True or False?

Solved • Mar 24, 2020

Intro to Motion (Kinematics)

Q. A. What constant acceleration, in SI units, must a car have to go from zero to 60 mph in 10 s?B. What fraction of g is this?C. How far has the car ...

Solved • Mar 24, 2020

Intro to Motion (Kinematics)

Q. To take off from the ground, an airplane must reach a sufficiently high speed. The velocity required for the takeoff, the takeoff velocity, depends...

Solved • Mar 11, 2020

Intro to Motion (Kinematics)

Q. A bullet traveling along the x axis at a velocity v x = vb strikes a telephone pole and penetrates a distance d before stopping. Assuming that the ...

Solved • May 29, 2017

Intro to Motion (Kinematics)

Q. A tennis ball with a speed of 10 m/s is moving perpendicular to a wall. After striking the wall, the ball rebounds in the opposite direction with a...

Solved • May 24, 2017

Intro to Motion (Kinematics)

Q. Consider a car which is traveling along a straight road with constant acceleration a. There are two checkpoints A and B which are a distance 108 m ...

Solved • May 24, 2017

Intro to Motion (Kinematics)

Q. A car moving at 50 km/hr skids 202 m with locked brakes. How far will the car skid with locked brakes if it were travelling at 150km/hr? A) 20 m ...

Solved • Mar 6, 2017

Intro to Motion (Kinematics)

Q. A car accelerates from 5.0 m/s to 21 m/s at a rate of 3.0 m/s  2. How far does it travel while accelerating? A) 117 m B) 207 m  C) 69 m D) 41 m

Solved • Mar 3, 2017

Intro to Motion (Kinematics)

Q. An object's position as a function of time is given by the equation y(t) = 5 - 7t  2 + 2t3. Its acceleration is A. constant with an undetermined v...

Solved • Mar 2, 2017

Intro to Motion (Kinematics)

Q. If an object moves in a straight line in the negative direction with decreasing speed, its acceleration will beA) zeroB) constantC) negativeD) posi...

Solved • Jan 16, 2017

Intro to Motion (Kinematics)

Q. A runner moving with an initial velocity of 8.7 m/s slows down at a constant rate of -1.4 m/s2 over a period of 2.0 seconds. What is her velocity a...

Solved • Jan 16, 2017

Intro to Motion (Kinematics)

Q. During takeoff, an airplane has an acceleration of 7.75 m/s2. How far has it traveled after 9 s? A) 3.9 m B) 35 m C) 628 m D) 314 m E) 70 m

Solved • Jan 13, 2017

Intro to Motion (Kinematics)

Q. During takeoff, an airplane has an acceleration of 7.75 m/s2. What is its speed after 9 s? A) 8 m/s B) 0.9 m/s C) 628 m/s D) 314 m/s E) 70 m/s

Solved • Jan 13, 2017

Intro to Motion (Kinematics)

Q. A runner moving with an initial velocity of 9.0 m/s slows down at a constant rate of -1.3 m/s2 over a period of 2.4 seconds. What distance does she...

Solved • Jan 13, 2017

Intro to Motion (Kinematics)

Q. A runner moving with an initial velocity of 9.0 m/s slows down at a constant rate of -1.3 m/s2 over a period of 2.4 seconds. What is her velocity a...

Solved • Jan 13, 2017

Intro to Motion (Kinematics)

Q. A ball is thrown against a wall and bounces back toward the thrower with the same speed as it had before hitting the wall. Does the velocity of the...

Solved • Jan 13, 2017

Intro to Motion (Kinematics)

Q. Usain Bolt can run the 100 m dash in 9.58s. Assuming his acceleration is constant during the sprint, what speed would Usain cross the finish line at?

Solved • Jan 6, 2017

Intro to Motion (Kinematics)

Q. During some motion, an object moves in the 7 m in the +y direction in 1.5 s, pauses for 1 s, and then moves 6 m in the +x direction in 1 s. What is...

Solved • Jan 6, 2017

Intro to Motion (Kinematics)

Q. During some motion, an object moves in the 10 m in the +y direction in 2 s, pauses for 3 s, and then moves 5 m in the +x direction in 0.5 s. What i...

Solved • Jan 6, 2017

Intro to Motion (Kinematics)

Q. A car driving at a speed of 20 m/s sees a dog in the road. If the dog is 100 m in front of the car, what is the minimum deceleration of the car so ...

Solved • Jan 5, 2017

Intro to Motion (Kinematics)

Q. A jogger is running around a circular track. If the jogger is averaging a mile every 10 minutes, and a single lap of the track is a quarter mile, w...

Solved • Jan 5, 2017