Gravitational potential energy is proportional to both mass and height above a reference level. Question 4 options:
True
False

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot