# Quick Answer: Why Would The Ball Eventually Stop?

## What force causes the notebook to stop moving?

frictionA pull from the table causes the notebook to stop moving.

(This force is called friction.).

## Is force necessary to keep the ball rolling Why?

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).

## Will a ball roll forever without friction?

Students often interpret “rolling without slipping” to be synonymous with “frictionless”. … So we conclude that there’s no force that can change the horizontal motion of the body, and no torque to change its rotation, so therefore if it’s rolling, it will roll forever without deceleration.

## Why dont balls bounce as high on the second bounce?

During a collision, some of the ball’s energy is converted into heat. As no energy is added to the ball, the ball bounces back with less kinetic energy and cannot reach quite the same height.

## How far can an average person throw?

Depends, are you asking how high or how far a ball can be thrown? Assuming the first of the two the average human can throw a ball approximately 15 metres (49.213 feet) in the air. In the latter the average person could throw a ball around 60 mp/h (37.3km/h).

## What forces eventually cause the ball to stop?

There is also friction between the ground and part of the ball that touches the ground as it rolls. The friction force acts in the opposite direction to the motion of the ball, slowing it and eventually stopping it.

## Why does the ball not hang there forever?

The height of bounce will asymptote to zero, so also the time taken for the bounce will get smaller and smaller and also asymptote to zero. So as time moves past this point, the ball will have stopped bouncing.

## What makes the ball stop rolling after someone?

The force of friction acts between the two surfaces by opposing the relative motion of one surface over the other. … The irregularities between the two surfaces lock into each other and thus, stop the ball from moving any further unless it is moved by an external force.

## Can a Newton’s Cradle go forever?

At least, that’s how it would work in an “ideal” Newton’s cradle, which is to say, one in an environment where only energy, momentum and gravity are acting on the balls, all the collisions are perfectly elastic, and the construction of the cradle is perfect. In that situation, the balls would continue to swing forever.

## Can a ball roll forever?

The theory of inertia says that an objects inertia will maintain its state of motion. So the ball should roll on forever. The ball only stops rolling because an external force (friction) causes the ball to stop. The more inertia an object has, the harder it is to change its state of motion.

## Why is rolling a ball down a hill considered an unbalanced force?

Answer: An unbalanced force refers to the force that causes change in velocity that is causes acceleration of the body. An unbalanced force makes a body to change either its speed or direction or both. … A ball rolling down a hill, accelerates downwards because of gravitational force.

## Is friction always necessary for rolling?

This friction applies a torque to the ball which starts the rotation. So static friction is infact necessary for a ball to begin rolling. … So friction is necessary for a ball to start rolling but once the rolling condition has been met the ball experiences no friction.