A mother and her small child are standing in an inflatable bouncy house on opposite sides. The mother jumps up and comes back down again, transferring her kinetic energy to the child through the floor. How will the motion of the small child change?
The child will move up at a faster speed because the child has less mass.
The child will move up at the same speed at which the mother came down.
The child will move up at a slower speed because the child has less mass.
The child will move down at the same speed at which the mother came down.