8. Two 14-kg blocks are connected with a light rope pand the system is accelerating at 1.8 m/s°[Right]. The coefficient of kinetic friction between the blocks and the floor is 0.35. A F. a) Calculate the magnitude of the applied force, F. b) Calculate the tension in the rope between block B and A.

In the figure, the net external force on the 24 kg mower is known to be 51 N. f=28N v=1.8 m/s   a. If the force of friction opposing the motion of 28N what force in newtons is the person acting on the mower? b. Suppose the mower is moving at 1.8 m/s when the force F is removed. How far will the mower go before stopping in m?

A man of weight 80 kg is standing in an elevator which is moving with a constant velocity of 6 m/s in downward direction. The apparant weight of a man will be (take g=10 m/s^2) A. 1280 N B. 0 N C. 320 N D. 800 N E. 640 N

1. Pushing a Bor Two workers are sliding a 300 kg crate across the floor. One worker pushes forward on the crate with a force of 380 N while the other pulls in the same direction with a force of 350 N using a rope connected to the crate. Both forces are horizontal, and the crate slides with a constant speed. What is the crate's coefficient of kinetic friction on the floor? 2. Fun Friction Problem A 4000 kg truck is parked on a 7.0 slope. Calculate the frictional force on the truck. 3. Rolling Friction The rolling resistance for steel on steel is a paltry = 0.002. How long would it take a 500,000 kg train to come to a stop if it was originally rolling at 10 m/s?