# Will you roll backwards if you go through the motions of throwing a ball but hold onto it instead?

## Will you roll backwards if you go through the motions of throwing a ball but hold onto it instead?

If you throw a ball horizontally while standing on roller skates, you roll backwards. Will you roll backwards if you go through the motions of throwing the ball, but hold on to it instead? Explain your reasoning. No, because momentum is conserved.

## When a billiard ball will stop short when it collides head on with another ball which is at rest?

Ex 6.49 A billiard ball will stop short when it collides head-on with a ball at rest. The ball cannot stop short, however, if the collision is not exactly head-on — that is, if the second ball moves at an angle to the path of the first.

## When you throw a ball horizontally while standing on roller skates you roll backwards?

Final answer: According to Newton’s third law and the law of conservation of momentum, when you throw a ball while on roller skates, you roll backward due to the equal and opposite force and momentum the ball generates.

## How does Newton’s first law apply to throwing a ball?

When a baseball is thrown or hit, the resulting motion of the ball is determined by Newton’s laws of motion. From Newton’s first law, we know that the moving ball will stay in motion in a straight line unless acted on by external forces.

## What does a backward spin cause the ball to do when the ball is thrown?

Backspin produces an upwards force that prolongs the flight of a moving ball. Likewise side-spin causes swerve to either side as seen during some baseball pitches, e.g. slider.

## When two objects collide and bounce off each other what type of collision is this called?

Suppose two similar trolleys are traveling toward each other with equal speed. They collide, bouncing off each other with no loss in speed. This collision is perfectly elastic because no energy has been lost. In reality, examples of perfectly elastic collisions are not part of our everyday experience.

## Which ball will hit the ground first if dropped at the same time?

Because Earth gives everything the exact same acceleration, objects with different masses will still hit the ground at the same time if they are dropped from the same height.

## What happens when a ball collides with another ball?

When this happens, most of the momentum is transferred to the ball on top. Since the collision in this situation is elastic, momentum is conserved, meaning the momentum of both balls right before hitting the floor is equal to the momentum of both balls right after the collision.

## Why do you move backwards when you throw something?

Momentum has Direction If you’re standing on frictionless skates and you throw a ball, you move backwards: you have momentum equal in magnitude, but opposite in direction, to that of the ball, so the total momentum (yours plus the ball’s) remains zero. Rockets work the same way, by throwing material out at high speed.

## When you throw a ball on the ground and it bounces back to your hand there is no net change in the kinetic energy?

Another example is when you throw a ball on the ground and it bounces back to your hand, the collision is elastic. In an elastic collision, both momentum and kinetic energy are conserved. The total kinetic energy of the system before the collision is equal to the total kinetic energy of the system after the collision.

## What law of motion is rolling a ball?

A rolling ball follows Newton’s first law of motion.

## When you roll a ball Why does it eventually stop rolling?

For example, when the ball rolls on the ground, the force of friction acts between the surface of the ball and the surface of the ground. 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.