Help please, With working.

Asap i'm in class rn a 1,000-kg car is traveling 20 m/s on a flat stretch of road. it gets to a hill and coasts uphill until it stops. how high up the hill does the car travel? givens: equation: 1/2mv2initial=mghfinal solve for h. plug & chug, label.

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Mixing salt in water is an example of physical change