# What forces are acting on a ping pong ball?

## What forces are acting on a ping pong ball?

The ball “floats” in the air at an even point when the force of gravity (which is forcing the ping pong ball down) is equal to the force of the air stream from the hair dryer (which is pushing the ping pong ball up). This is known as Bernoulli’s Principle.

## What causes spin in tennis?

In racquet sports, it can be generated by hitting the ball with an up-and-forward swing, with the racquet facing below the direction it is moving. A topspin shot is the opposite of the slice; topspin itself is the opposite of backspin.

What is a spin in ping pong?

Spin is imparted onto a ball by using a tangential brushing action with your racket. Do this with your racket at less than a 90 degree angle. Use an upwards, downwards, or sideways movement. The faster a racket brushes a ping pong ball, the faster it will spin.

### What force causes a ball to bounce?

Yes, gravity does affect they way balls bounce. Gravity pulls the ball toward the ground, slowing the ball down so that each bounce is shorter and shorter, until eventually the ball stops bouncing. The force of the ball hitting the hard ground puts an equal force back onto the ball, causing it to bounce up.

### How do you spin a ball in physics?

The ball will spin if the fingers drag up, down or across the back of the ball as it comes out of the hand, due to the tangential friction force between the ball and the fingers.

What is spin in biomechanics?

Biomechanics in Physical Education Spin is created by applying a force that is off centre to the object being thrown (or kicked) at the point of release. The effects of spin are important in all ball sports and throwing events. The Magnus effect explains why the paths of balls deviate from normal flight path.

## How does spin make a ball curve?

When pitching a curveball, the pitcher puts a spin on the ball as it leaves his hand. As it travels through the air, the spin causes the ball to disturb the air around it. Specifically, the spin causes air on one side of the ball to move faster than the other, resulting in uneven pressure on the ball, making it curve.

## Why does a ping pong ball bounce?

When the ball hits the ground, all that kinetic energy has to go somewhere. A lot of it goes back into the ball, giving it more force to pop back up into the air—so the higher the potential energy, the higher the kinetic energy, and the higher the kinetic energy, the higher the bounce!

How does spin affect the bounce of a tennis ball?

Friction determines the angle of bounce, the horizontal bounce speed, and the spin. It does not affect the vertical bounce, however. Friction acts parallel to and opposite the direction of motion of the ball on the surface. Friction arises whenever a force is applied to move one object across the surface of another.

### How does spin affect projectile motion?

The amount and direction of spin acting on a projectile will directly affect the distance a projectile will travel. The reason for this is the air pressure acting on the ball. Example: In a tennis shot, topspin gives poorer distance compared to backspin.

### How does spin affect a tennis ball?

In tennis topspin effect allows the player to hit the ball higher bending the line of the ball playing at the opponent’s feet. It is performed by angling the face of the racquet down and hitting the ball from below and brushing it upwards while accelerating the hit.

What is the physics of a curveball?

Curveballs curve — or break downward — because of the spin imparted by the pitcher as he flings it toward home plate. The way Briggs explained it, the rotation of the seams creates a “whirlpool” of air around the ball and causes the pressure to be lower on one side.

## Why does a ping pong ball spin?

When the ball makes contact with the table, the air pressure and rotation is what will cause the ping pong ball to slow down or speed up. One of the most essential strokes in a strategic player’s arsenal is the top spin. A player can impart an impressive amount of power to the ping pong ball.

## What is spin in ping-pong?

and recreational ping-pong is the use of spin. The spin of a ping-pong ball is difﬁcult to observe directly, but its effect on all aspects of the game is profound. The mass of the ball is small and the ball’s trajectory and its motion upon bounc- ing off the table and paddle are non-intuitive for all but the

How to juggle a spinning ping-pong ball?

To accomplish this, one would need to brush the ball close to the top of its trajectory at a large angle; this would give the ball a small velocity change, effectively juggling the ball almost in place. VI. CONCLUSION We demonstrated that one can investigate the juggling of a spinning ping-pong ball with different paddles using basic

### What is the speed of a ping pong ball?

changes in speed of 4–8m/s, Dp=Dt for the 2.7-g ping-pong ball is in the range of approximately 5–20N, at least two orders of magnitude larger than F