Acceleration

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

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

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 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

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

Back

Its direction changes

Front

Does acceleration only occur when things speed up?

Back

False

Front

Determine where the car has no acceleration: A car shortly after a stoplight turns green, A car approaching a red light, A car with the cruise control set at 80 km/h, A car turning a curve at a constant speed.

Back

A car with the cruise control set at 80 km/h

Front

Determine the motion of the car. Options: at rest, moving at constant speed, speeding up, slowing down

Back

speeding up

Front

Which graph represents zero acceleration (constant velocity)? Options: A, B, C, D

Back

D

Front

Which graph represents the greatest acceleration? Options: A, B, C, D

Back

A