# Help with acceleration, magnitude, and direction of force

## Homework Statement

As a baseball is being caught, its speed goes from 28.0 m/s to 0.0 m/s in about 0.0050 s. The mass of the baseball is 0.140 kg.

What is the baseball's acceleration?
What are the magnitude and direction of the force acting on it?
What are the magnitude and direction of the force acting on the player who caught it?

f=ma?

## The Attempt at a Solution

28.0 m/s x 0.140 kg = 3.92

LowlyPion
Homework Helper

## Homework Statement

As a baseball is being caught, its speed goes from 28.0 m/s to 0.0 m/s in about 0.0050 s. The mass of the baseball is 0.140 kg.

What is the baseball's acceleration?
What are the magnitude and direction of the force acting on it?
What are the magnitude and direction of the force acting on the player who caught it?

f=ma?

## The Attempt at a Solution

28.0 m/s x 0.140 kg = 3.92

You calculated momentum. The force will be change in momentum over the time period.

If v = a*t you should be able to figure the acceleration.

so 28.0 m/s x 0.0050 s?

LowlyPion
Homework Helper
so 28.0 m/s x 0.0050 s?

Not the way I do algebra.

LowlyPion
Homework Helper

That gives you acceleration.

but isnt v = velocity? and v = distance/time? they dont give me a distance