Find the angles between vectors

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.