Front

A roller coaster 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?

Back

16 m/s²

Front

A box at rest starts sliding down an inclined plane for 3 seconds, until it reaches a velocity of 27 m/s. What is the box's acceleration?

Back

9 m/s²

Front

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

Back

-0.5 m/s²

Front

A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.

Back

5.7m/s²

Front

Billy was driving his car and when he reached the tollbooth he slowed down with an acceleration of -8.9 m/s² for 20 seconds. If he started with an initial velocity of 190m/s, what is his final velocity?

Back

12 m/s

Front

A running horse increases his speed from 15 m/s to 42 m/s at an acceleration of 9 m/s². How long did this take the horse?

Back

3 s

Front

Acceleration is defined as the CHANGE in

Back

velocity divided by the time interval

Front

Why does a car accelerate as it rounds a corner at a constant speed?

Back

Its direction changes

Front

A negative acceleration means that your object is _____.

Back

slowing down

Front

The unit for Acceleration is usually

Back

m/s²