2. If Peter is traveling .25 m/s on his bike, how long will it take him to reach a fence that is 12 meters away?
a. 3 s
b. 20 s
c. 12 s
d. 48 s

A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?

Acombination reaction is when two or more combine to form one product. a decomposition reaction is when a substance breaks down into two or more simpler substances in a chemical reaction.

What do you think car designers do if the damage caused by a crash test is too severe?