According to newton's second law of motion, when the net force on an object is greater than 0 how is it's mass related to its acceleration?

a. they are directly related
b. they are equal
c. they are inversely related
d. they not are related at all

Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano.the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? positive force → balanced force → negative force negative force → balanced force → positive force positive force → unbalanced force → negative force negative force → unbalanced force → positive force