Kinematic Equation Practice Problems - Anne Elizabeth Franck | Library

On the AP Physics Exam you will be given these three equations.

xo= intial position
x= final position

vo = intial velocity
v = final velocity

You will not be given these two simpler equations, but you will find them helpful in solving the problems today.

The bar over the v means average velocity.

1

A marble is dropped from 2.5 m and hits the ground in 0.71 s. What is the final velocity before it hits the ground? (Hint: what is its initial velocity?)

1

An Olympic-class sprinter starts a race with an acceleration of 4.50 m/s2. What is her speed 2.40 s later?

1

Freight trains can produce only relatively small accelerations and decelerations. What is the final velocity of a freight train that accelerates at a rate of 0.0500 m/s2 for 8.00 min, starting with an initial velocity of 4.00 m/s?

1

If the train can slow down at a rate of 0.550 m/s2, how long will it take to come to a stop from this velocity?

1

How far will it travel to stop?

1

A car skids to a stop to try to avoid hitting a deer. The car skids 21 m in 2.3 s. How fast was the car originally going?

This was across the street from my brother's house last week.

1

If a moose can accelerate at 2.1 m/s2 from rest, how much time will it take for it to accelerate to a speed of 4 km/h?

A fireworks shell is accelerated from rest to a velocity of 65.0 m/s over a distance of 0.250 m.

1

How long did the acceleration last?

1

Calculate the acceleration

1

When you try to stop your car in an emergency, there is some time before you can react. Your car is going 25 m/s and your reaction time is 0.20 s, then after you hit your brakes it accelerates at - 9.5 m/s2. How far will hour car travel before it stops?