Question
Problem 3- A block of mass m1 = 4 kg moves from rest under the influence of a varying force F(x) = 4x + 38, where F is in newton and x is in meters, on a rough horizontal surface having a coefficient of kinetic friction of 0.2. The block is connected by a light cord passing over a small frictionless pulley to a second hanging block of mass m2 = 3 kg as shown. If the system moves from x= 0 to x= 2m, calculate:
1) The work done by the force F(x) to move m1 from x= 0 to x= 2 m.
2) The change in the potential energy of each mass
3) The work done by friction.
4) The change in the kinetic energy of the system.
1) The work done by the force F(x) to move m1 from x= 0 to x= 2 m.
2) The change in the potential energy of each mass
3) The work done by friction.
4) The change in the kinetic energy of the system.