Joel and Marissa are on skates on an icy pond. They are facing each other with their hands touching. They then push away from each other with their hands. The force of Joel pushing upon Marissa is equal to . *

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?