F 10 kg 77777 1981B1 A 10 kilogram block is pushed along a

Last updated: 5/2/2023

F 10 kg 77777 1981B1 A 10 kilogram block is pushed along a rough horizontal surface by a constant horizontal force F as shown above At time t 0 the velocity v of the block is 6 0 meters per second in the same direction as the force The coefficient of sliding friction is 0 2 Assume g 10 meters per second squared a Calculate the force F necessary to keep the velocity constant The force is now changed to a larger constant value F The block accelerates so that its kinetic energy increases by 60 joules while it slides a distance of 4 0 meters b Calculate the force F c Calculate the acceleration of the block