An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 5.7× 104 kg, and the force causes its speed to change from 6500 to 5200m/s. (a) What is the work done by the force? (b) If the asteroid slows down over a distance of 2.3x 106 m determine the magnitude of the force. (a) Work= (b) F= i i

An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 5.7× 104 kg, and the force causes its speed to change from 6500 to 5200m/s. (a) What is the work done by the force? (b) If the asteroid slows down over a distance of 2.3x 106 m determine the magnitude of the force. (a) Work= (b) F= i i