Question
answers for 2,3,4,5 plz
Work, Power, and Energy 2. An object is moving in the positive x-direction while a net force directed along the x-axis is exerted the object. The figure shows the force function of posit What the net work done on the object the distance shown? A) End C) 2Fed 3. A ball dropped from rest and falls to the floor. The initial gravitational potential energy ofthe is is 10 J The ball then bownces back up a heighn where the potential energy is J. what was the mechanical ene of the ball-Earth-noor system the instant the ball left the floor? A) 01 C) 7 J D) 10 J
Explanation / Answer
2.)work done = integration (F(x).dx)
work done = Fd + Fd = 2Fd
option C is correct
3.)energy of ball earth floor system when the ball left the floor = 7J
4.)option C is correct
at point 3 both kinetic energy and potential energy are equal