For the following situations, describe the contact and non-contact forces that are involved , a. A book sitting on a shelf

b. A soccer player kicking a ball; the ball soaring through the air and landing on the ground

C. A hiker in the woods reading her compass to determine which direction to go

d. A child on a sled; first, the child is sitting at the top of the hill, waiting his tum; then, the child pushes off and slides down the hill, eventually coming to a stop.

Btw this is asking for you to describe the contact and non contact forces involved in all the little sentences