Why does gravity do almost no work on a bowling ball rolled along an alley?


Gravity does almost no work on a bowling ball rolling along an alley because the ball is not moving in the direction of gravity. Work, as defined by physics, is a function of both force and distance traveled in the direction of the force.

If a bowling ball rolls down a hill, then gravity does work on the ball because the ball is traveling in the direction of gravity. Interestingly, while the bowling ball is rolling down the alley, there also is very little work being done on it by the person who threw the ball. All of the work occurs before the ball is released when the bowler is throwing the ball. Once the ball leaves the bowler's hand, however, that person can't exert force or do work on the ball anymore.

Q&A Related to "Why does gravity do almost no work on a bowling..."
Work is definied in Physics as the Force acting on an object times the distance the object is moved by that Force, or W = fd. Since Force is mass times acceleration (F=ma) and because
Actually, it does. A
Mathew, What do you think would happen if he just let go of the pendulum bob? Would the bob return all the way back to his nose? You should try this and see. Now do it again, only
no because movement of the ball (horizontal) is perpendicular to gravity (vertical) if there was no air resistance and friction, ball would roll forever with same speed. if there
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