A toy rocket engine is securely fastened to a large puck that can glide with negligible friction over a horizontal surface, taken as the xy plane. The 4.00-kg puck has a velocity of m/s at one instant. Eight seconds later, its velocity is m/s. Assuming the rocket engine exerts a constant horizontal force, find (a) the components of the force and (b) its magnitude. 3.00i^ (8i^+10j^)
