Apiano is being pushed up a frictionless ramp that makes it 25° angle with the floor. if the piano weighs 510 pounds, and the force pushing the piano up the ramp is 240 pounds, what is the acceleration of the piano?

Carmen is load furniture and boxes onto a moving truck. she picks up boxes of her things, places them on a cart, and pushes the cart to the moving van. which term best describes the type of force carmen uses? a. contact b. friction c. gravity d. noncontact