B 120 kg
1
20 m
m
A roller derby car with a mass of 120kg starts at the top
of the hill (20 meters high) how fast is the car going at
point B with a height of 16 meters? (use g = 10m/s/s
and create a LOL to help solve the problem)

An automobile of mass 2000 kg moving at 30 m/s is braked suddenly with a constant braking force of 10000 n. how far does the car travel before stopping?

What best describes a sonar wave? transverse and electromagnetic transverse and mechanical longitudinal and electromagnetic longitudinal and mechanical

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.