SUVAT Equations

The rate at which velocity changes is called acceleration.

• True
• False

A train travels 6 meters in the first second of travel, 6 meters again during the second second of travel, 6 meters again during the third second. It's acceleration is __ m/s²?

• 0

• 6

• 12

• 18

In the absence of air resistance, objects fall at constant 

• speed
• velocity
• acceleration
• all of the above

An object  accelerates at 2  m/s^2. Assuming the object starts from rest, how much time does it need to accelerate to a speed of 16  m/s?

• 4 s
• 8 s
• 16 s
• 1/16 s

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

In each of the following cases, determine which car has the greatest positive acceleration.

• starts from 0 m/s to 20 m/s in 4 seconds.
• speed up from 20m/s to 40m/s in 3 seconds
• slow down from 50m/s to stop in 2 seconds
• starts from 0 m/s to 20m/s in 5 seconds

A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²
• 18 m/s²
• 16 m/s²
• 16 m/s

A dog runs with an initial speed of 7.5 m/s to a stop in 15 seconds.  What is the dog's acceleration?

• -7.5 m/s
• -7.5 m/s²
• -0.5 m/s²
• 7.5 mi//hr

An object with an initial velocity of 3.50 m/s moves east along a straight and level path. The object then undergoes a constant acceleration of 1.80 m/s² east for a period of 5.00 s. How far does the object move while it is accelerating?

• 6.30 m
• 17.5 m
• 27.2 m
• 40.0 m

How much time would it take for an object to fall 4.7 meters?

• 0.959 s
• 4.79 s
• 0.979 s