A Ball Is Being Rotated In A Rough Floor Find

Not all balls are equal.

A ball is being rotated in a rough floor find.

This lesson compares the bouncing of a bocce ball a tennis ball and a golf ball. What can you say about the work done by friction. Bouncing ball physics is an interesting subject of analysis demonstrating several interesting dynamics principles related to acceleration momentum and energy. A a ball rolls down an inclined plane.

A ball s ability to bounce has a lot to do with its elasticity. A concrete block is pulled 7 0 m across a. Objects that are more stretchy are usually more elastic too. B a physics student stretches a spring.

Don t just slide try to get your hips square to the ball by the time your left arm reaches parallel to the ground above right. Wheel having a diameter of 40 m is fitted with a cage and platform on which a man of mass m stands. C a projectile falls toward the surface of earth. Repeat taking measurements until you get a pair of times that differ by.

Even a hard rubber ball won t bounce if you drop it onto the dry part of a sandy beach. D a box is pulled across a rough floor at constant velocity. It s an object s ability to return to its original shape after being stretched or squeezed. A g g.

This does not mean the maths is wrong. A 40 n crate rests on a rough horizontal floor. Keep the width in your stance too. A 12 n horizontal force is then applied to it.

The wheel is rotated in a vertical plane at suck a speed that the force exerted by the man on the platform is equal to this weight when the cage. F or most men getting kicked in the testicles is one of the worst things that could happen to them. I find it difficult to reconcile my thinking with the maths. Then have your lab partner measure the time t 20 1 it takes for the ball to complete 20 revolutions.

For a rough surface at a particular angle there will be more friction than if the same material has a smooth surface i am sure their is an exception to this but that is a special case yet f it seems to be fixed for a particular angle. What makes a ball bouncy. Friction does negative work. Or using the definition of work.

These principles will be discussed. For a growing number of men however the erotic art of ball busting is a sought out sexual. A box is being pulled across a rough floor at a constant speed. Interchange roles of whirler and timer and repeat the measurement to obtain time t 20 2.

W f d cos since cos 180 then w 0. Have you ever wondered why some balls bounce higher than others. Almost everybody at some point in their lives has bounced a rubber ball against the wall or floor and observed its motion. Ensure that the ball is rotating in a horizontal circle before measuring the time.

Frictions acts in the opposite direction to the displacement so the work is negative. Mass and elasticity affect how high the ball will bounce and how far it will travel.