Q. A 5 g bullet with an initial velocity of 95 m/s lodges in a block of wood and comes to rest at a distance of 6 cm. assume the bullet undergoes a constant negative acceleration; it slows at a constant rate. How much time does it take for bullet to stop?
Q. An archer pulls her bowstring back 0.400 m by exerting a force that increases uniformly from zero to 200 N.
(i) What is the equivalent spring constant of the bow?
(ii) How much work is through in pulling the bow?