Kinematics & Dynamics Assessment

A  car starts from rest and after  7 seconds it is moving at 42  m/s. What is the car’s acceleration?

• 0.17
• 1.67
• 6
• 7

How long will it take a running horse to travel 260 m and attain a speed of 12 m/s from rest?

• 1200 seconds
• 1.2 hours
• 43 Hours
• 43 minutes

A car is traveling at 21.0 m/s. It slows to a stop at a constant rate over 5.00 s. How far does the car travel during those 5.00 seconds before it stops? 

• 4.20 m
• 52.5 m
• 105 m
• 158 m

Motion sensors recorded the following data about a runner during a cross-country race. During which segment of the race did the runner have the greatest speed?

• W
• X
• Y
• Z

The ball took 0.45 s to hit the ground 0.72 m from the table. What was the horizontal velocity of the ball as it rolled off the table?

• 0 m/s
• 0.63 m/s
• 1.6 m/s
• 2.2 m/s

What would the v-t graph look like for an object travelling at a constant velocity? 

• Curved line
• Straight line
• Horizontal line

Describe the motion

• Slow to fast;   Negative direction
• Fast to slow;   Negative direction
• Fast to slow;   Positive direction
• Slow to fast;   Positive direction

What happens to the velocity of a ball as it is dropped off a cliff? 

• It decreases at a uniform rate 
• It increases at a uniform rate 
• It is constant 
• It increases at a non-uniform rate

Sara throws a baseball at 23.0 m/s at an angle of 25.0 degrees relative to the ground.If the ball was caught 42.0 m from Beau, find the components

• Vx=20.8 m/s Vy=9.72 m/s

• Vx=9.72 m/s Vy=20.8 m/s

• Vx=20.8 m/s Vy=19.72 m/s

• Vx=19.8 m/s Vy=9.72 m/s

Shoshana throws a baseball at 23.0 m/s at an angle of 25.0 degrees relative to the ground.If the ball was caught 42.0 m from Beau, the maximum height the ball reached

• 2.81 m

• 4.81 m

• 8.81 m

• 12.81 m