Calculating Acceleration

Front

Mark slams on the brakes after traveling 25 m/s. It takes him 3 seconds to come to a complete stop. What is his acceleration?

Back

-8.33 m/s²

Front

How much time did it take Matthew to slow down to a complete stop, after traveling at 30 m/s with an acceleration of -12 m/s²?

Back

2.5 s

Front

Anthony runs for 300 s from rest with an acceleration of 0.05 m/s². What is his final velocity?

Back

15 m/s

Front

Mars’ gravitational force is less than that of Earth’s. If an astronaut drops a hammer and its speed increases from 0 to 15 m/s in 4.04 s, what is the acceleration due to gravity on Mars?

Back

3.71 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

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

A bicyclist begins moving with a velocity of 10 m/s and then decreases his velocity to 6 m/s in 2 seconds. What is the acceleration of the bicyclist?

Back

-2 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

What is the motion shown in this velocity time graph?

Back

Speeding up in the positive direction

Front

What is the motion shown in this velocity time graph?

Back

slowing down in the positive direction