Table of Contents

## Does a moving object have impulse or does it have momentum?

Answer: Impulse is the product of the average force and the short time interval for which it acts and causes a change in momentum of a body, A moving object can experience an impulse if a force acts on it and changes its momentum.

## What does a moving object have?

All moving objects have kinetic energy. When an object is in motion, it changes its position by moving in a direction: up, down, forward, or backward. 3. Potential energy is stored energy.

**Does a stationary object have impulse?**

Two colliding objects will exert equal forces upon each other even if their mass is significantly different. During a collision, an object always encounters an impulse and a change in momentum. A moving object collides with a stationary object; the stationary object has significantly less mass.

### What is the impulse of an object?

Impulse is the change of momentum of an object when the object is acted upon by a force for an interval of time. So, with impulse, you can calculate the change in momentum, or you can use impulse to calculate the average impact force of a collision.

### How do you find the impulse of an object?

The impulse experienced by the object equals the change in momentum of the object. In equation form, F • t = m • ” v. In a collision, objects experience an impulse; the impulse causes and is equal to the change in momentum.

**What is the difference between momentum and impulse?**

The momentum of the object is given by the product of mass and velocity while the impulse is the change of momentum when a large force is applied on an object for a short interval of time.

## What was the average force exerted on the ball?

Using Newton’s second law we can estimate the average force acting on the ball during the hit: Plugging in the numbers we find the average force to be Favg=18,436 N, which is equivalent to 4124 lbs of force.

## Why doesn’t a bat move backwards when it hits a ball?

15. Why doesn’t the bat move backwards, when the ball hits it? Because the ball exerts a reaction force on the bat.

**What happens when a bat hits a ball?**

When the bat hits the ball, the ball goes flying. A lot happens in that split second, as energy is transferred from the player to the bat, and then to the ball.

### Why does the ball stop?

“When you roll a ball on the ground, the electrons in the atoms on the surface of the ground push against the electrons in the atoms on the surface of your ball that is touching the ground. A rolling ball stops because the surface on which it rolls resists its motion.

### Is there no friction in pure rolling?

Friction will not be needed when a body has initiated pure rolling on a horizontal smooth surface BUT if it is on an incline friction is a necesaary friend. Without it the body will not roll on the incline.

**Is force necessary to keep the ball rolling?**

In the absence of any forces, no force is required to keep an object moving. An object (such as a ball) tossed in the earth’s atmosphere slows down because of air resistance (a force).

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