Sports Science Kinematics Retake #1

Jonathon set a new record in the school weight room by lifting a 100 kg weight 2 m up in 3 seconds with an acceleration of 2 m/s/s. What was the final velocity of the weight?

• 3.7 m/s up

• 8.2 m/s up

• 9.8 m/s up

• 7.3 m/s up

Brendon, a long distance runner, begins at the starting line and completes exactly 3 laps on a 400 m track. What is the total distance and displacement of Brendon when they cross the finish line after the 3rd lap?

• Distance 0 m | Displacement 1600 m
• Distance 400 m | Displacement 1200 m
• Distance 1200 m | Displacement 0 m

• Distance 1600 m | Displacement 1600 m

You are tracking the movement of a volleyball during an epic volley between Lockwood and Billings Central. You watch the volleyball move 12 m North, then 12 m South, then 15 m North, and finally 10 m South. The volley took a total of 10 seconds. What was the displacement and velocity of the volleyball?

• Displacement: 17 m North | Velocity: 1.7 m/s North
• Displacement: 5 m North | Velocity: .5 m/s North
• Displacement: 49 m South | Velocity: 4.9 m/s North
• Displacement: 5 m South | Velocity: .5 m/s South
• Displacement: 22 m North | Velocity: 10 m/s South

Zayon sprints 40 m West at a constant acceleration in 4 seconds. Find his velocity.

• 4 m/s West
• 4 m/s East
• 10 m/s West

• 10 m/s East

Daniel is moving at 5 m/s South before accelerating 2 m/s North for 4 seconds. What is Daniel's final velocity?

• 3 m/s South
• 13 m/s South
• 3 m/s North
• 13 m/s North

You are tracking Joe's velocity to find his acceleration. Joe's initial velocity is 3 m/s West and 5 seconds later his velocity is 12 m/s West. What is his acceleration?

• 1.8 m/s/s West
• 2.3 m/s/s West
• 5.4 m/s/s West
• 9 m/s/s West

Ms. Beauprez drops a pumpkin from the roof of the school to demonstrate acceleration due to gravity. The pumpkin drops for 5 seconds before splatting on the ground. What was the pumpkin's final velocity?

• 10 m/s down
• 20 m/s up

• 40 m/s up

• 50 m/s down

Kristian has an initial velocity of 2 m/s north and sprints as far as he can in 12 seconds with a constant acceleration of 1 m/s/s north. How far did Kristian travel?

• 24 m North
• 72 m North
• 96 m North
• 144 m North

Mr. Bushnell throws a football 70 m South. The ball constantly accelerated at 2 m/s/s South and has a final velocity of 20 m/s South. What was the initial velocity?

• 10.96 m/s South
• 12.21 m/s South
• 14.86 m/s South
• 16.72 m/s South

Jesse hits a golf ball resting on a tee 50 m North with a final velocity of 10 m/s North. How long did it take the ball to make it 50 m?

• 2.5 seconds
• 4.7 seconds
• 6.4 seconds

• 10.0 seconds