posted by josh on .
A soccer ball with a mass of 415 g bounces off the crossbar of a goal and is deflected upward at an angle of 57° with respect to horizontal. Immediately after the deflection, the kinetic energy of the ball is 47 J. What are the vertical and horizontal components of the ball's momentum immediately after striking the crossbar? (Let the horizontal direction be the x-direction and the vertical direction be the y-direction.)