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Intro to Motion (Kinematics) Solutions Library

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19 solutions

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