A 22,000kg. railroad car is traveling at 8m/s when it strikes another 15,000 kg railroad car that is at rest. If the cars lock together, what is the final speed of the two railroad cars?

Matt is driving down 7th street. he drives 150 meters in 18 seconds. assuming he does not speed up or slow down, what is his speed?

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?