A 1000 kg car is moving on flat road at a constant speed of 25 m/s. What is the magnitude of average not force, that is required to slowing the car to 12.5 m/s within 22 seconds?

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? a.positive force, balanced force, negative force b.negative force, balanced force, positive force c.positive force, unbalanced force, negative force d. negative force, unbalanced force, positive force