Acceleration

Front

A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.

Back

9 m/s²

Front

Which of the following is a unit for acceleration? Options: km/s, m/s², mi/hr, ft

Back

m/s²

Front

Can be measured in meters per second (m/s)

Back

Speed

Front

What is velocity?

Back

speed in a specific direction

Front

When a car goes around a corner at 20 mph, why do we say it accelerates?

Back

The car is accelerating because it's changing direction

Front

Acceleration is defined as the CHANGE in

Back

velocity divided by the time interval

Front

Does acceleration only occur when things speed up?

Back

False

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 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 ball of clay is thrown at a wall at a velocity of 28.0 m/s. After it hits the wall, it takes 0.020 s to stop. What is the acceleration of the clay when it hits the wall?

Back

-1400 m/s₂