1) A 200 kg car is driving down the highway with a velocity of 50 m/s. The driver slams on the break with a force of 1000 N.

a. What is the acceleration felt by the car?

b. How much time does it take for the car to stop?

C.

How far does the car move before it comes to a complete stop?za

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.