So since I can’t put the picture I’m gonna try to describe the situation:
A bunch of guys are pushing a pickup truck in one direction. There’s also a guy *on top* of the pickup truck (in the back) pushing against the front in the same direction. Obviously he’s not applying any force, but why?
In: 0
He is applying force, he’s just not applying net force. Imagine he’s in socks, what happens? His feet slide backwards! When he puts shoes on, the force on his feet is still there, it’s just pushing what he’s standing on. He’s pushing one direction with his hands, and the other with his feet, and the force is exactly equal, so the net is zero. They cancel each other out.
Latest Answers