 # Question: What Would Happen If You Tried To Catch A Ball When You Were Standing On Roller Skates??

What would happen if you tried to catch a ball when you were standing on roller skates?

When you caught the ball, you (with the ball in your hand)would move in the direction of the ball’s initial motion.

Momentum is a characteristic of an object equal to the product of its mass and its velocity.

## What is momentum conservation?

Conservation of momentum is a fundamental law of physics which states that the momentum of a system is constant if there are no external forces acting on the system. It is embodied in Newton’s first law (the law of inertia). Suppose we have two interacting particles 1 and 2, possibly of different masses.

## Why is it important for drivers to allow more distance between their cars when they travel at faster speeds?

Why is it important for drivers to allow more distance between their cars when they travel at faster speeds? cars traveling at faster speeds have more momentum and are more difficult to stop than cars travelling at slower speeds.

## How do you solve for momentum?

To calculate the momentum of a moving object multiply the mass of the object times its velocity. The symbol for momentum is a small p. So, the momentum of the object is calculated to be 8.0 kg-m/s. Note the unit for momentum.

Photo in the article by “Flickr” `https://www.flickr.com/photos/ferlinka/3165659098`