Asked by KC

If a ball is sliding along a frictionless horizontal surface is the total work being done on the ball zero? I think so because there is no mention of applied force. Am I correct?

P.S. On this holiday weekend, I want to send a BIG THANK YOU to all the teachers who very generously give of their time to help us kids out on this site. It is very much appreciated!
Answered by Damon
Correct, there is no net force in the direction the ball is moving.
There are two vertical forces, gravity and the equal and opposite force from the table on the ball. However there is no motion in the vertical direction.
Answered by KC
Thanks!
Answered by Damon
You are welcome :)
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