Kinematics Video Quiz

What is the initial velocity of the ball when it is thrown from the building?

• 50 meters per second

• 40 meters per second

• 30 meters per second

• 20 meters per second

What is the final velocity of the ball just before it impacts the ground?

• 60 meters per second

• 70 meters per second

• 90 meters per second

• 80 meters per second

What is the value of acceleration due to gravity used in this problem?

• 9.8 meters per second squared

• 10.1 meters per second squared

• 10 meters per second squared

• 9.81 meters per second squared

Which kinematic equation is used to find the displacement in this problem?

• v = u + at

• s = ut + 0.5at^2

• v^2 = u^2 + 2as

• s = vt - 0.5at^2

What is the formula for displacement (Delta X) derived from the kinematic equation used?

• Delta X = (v^2 + u^2) / (2a)

• Delta X = (u^2 - v^2) / (2a)

• Delta X = (v^2 - u^2) / (2a)

• Delta X = (v^2 - u^2) / a

What is the calculated displacement of the building?

• 360 meters

• -360 meters

• 720 meters

• -720 meters

Why is the displacement value negative in this problem?

• Because the final velocity is positive

• Because the ball is moving upwards

• Because the initial velocity is negative

• Because the ball is moving downwards

What is the actual height of the building?

• 180 meters

• 540 meters

• 720 meters

• 360 meters

What is the significance of assigning directions as positive or negative in kinematics?

• It helps in determining the speed

• It helps in determining the velocity

• It helps in determining the direction of motion

• It helps in determining the time of flight

What should you do if you need extra help with your homework according to the video?

• Read a textbook

• Watch more videos

• Send an email with pictures

• Ask a friend