Question

1. a 75kg gymnast stands on a horizontal board 4.5m from one end. The board is 15kg and 7m long, supported at each end. What is the total force provided by both supports of the board. With what force does the support that is closest to the gymnast push up?

2. Car A weighs 1420 kg and is traveling North at a speed of 30m/s. Car B weighs 1500kg and is traveling East at a speed of 45ms. What is the final speed of the cars if the collision was completely inelastic?

Answer 1