Acceleration

Front

Velocity is both ____ and _____.

Back

speed , direction

Front

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

Back

16 m/s²

Front

Acceleration: is the ___________.

Back

rate of change of velocity

Front

What does it mean when a change in velocity(acceleration) is negative?

Back

The object is slowing down.

Front

In each of the following cases, 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

A golf ball accelerates off a tee at 15m/s², changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?

Back

3.3 seconds

Front

What is the final velocity of a rocket that travels for 4 seconds, has an initial velocity of 12 km/s and an acceleration of 2 km/s²?

Back

20 km/s

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

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

Back

D

Front

When the velocity and acceleration are in the opposite direction, you are...

Back

slowing down