Kinetic Energy is movement energy (most simplistic way I can put it) so its motion.
A motor is built to use all those things and produce mechanical energy.
Evaporation (or another word to use is water vapor.)
They are trailing the same speed as it states in the question they are heeding toward each other a 70 mph <span />
Answer:
3kg sledgehammer swung at 1.5 m/s
Explanation:
Small Sledgehammer:
Mass:3.0
Velocity:1.5
MASS×VELOCITY=MOMENTUM
3.0×1.5= 4.5 (momentum)
Large Sledgehammer:
Mass:4.0
Velocity:0.9
4.0×0.9=3.6 (momentum)
higher momentum is the smaller Sledgehammer.
