A bullet is shot into a block of plastic. The bullet penetrates the block 0.3 meter. The mass of the bullet is 11 gram. It is traveling with a speed of 440 meter per second before it hits the block.
(a) Use kinematic equations to obtain the magnitude of the acceleration on the bullet as it is penetrating the block (neglect gravity, and suppose that the force on the bullet as it penetrates the block is constant).
(b) Use Newton's Second Law to obtain the magnitude of the force exerted on the bullet by the plastic block.