Respuesta :
Answer:
The magnitude of change in momentum is (2mv).
Explanation:
The momentum of an object is given by the product of mass and velocity with which it is moving.
Let the mass of ball is m. A tennis player smashes a ball of mass m horizontally at a vertical wall. The ball rebounds at the same speed v with which it struck the wall.
Initial speed of the ball is v and final speed, when it rebounds, is (-v). The change in momentum is given by :
p = final momentum - initial momentum
[tex]p=-mv-mv\\\\p=-2mv[/tex]
So, the magnitude of change in momentum is (2mv).
The magnitude of change in momentum should be (2mv).
Change in momentum:
The momentum of an object should be provided by multiplying the mass and velocity. Here we assume the mass of the ball is m. The initial speed of the ball is v and the final speed, at the time when it rebounds, is (-v).
So, the change in momentum should be
p = final momentum - initial momentum
= -mv -mv
= -2mv
Learn more about the speed here: https://brainly.com/question/18742396
