The driver of a car slams on the brakes, causing the car to slow down at a rate of 19.0ft/s as the car skids 329ft to a stop.

Matt is driving down 7th street. he drives 150 meters in 18 sec. assuming he doesn’t slow down or speed up, what is his speed?

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.