Post by: berenicecastro on Aug 1, 2020
A block is pushed across a rough horizontal surface from point A to point B by a force (magnitude P = 5.4 N) as shown in the figure. The magnitude of the force of friction acting on the block between A and B is 1.2 N and points A and B are 0.5 m apart. If the kinetic energies of the block at A and B are 4.0 J and 5.6 J, respectively, how much work is done on the block by the force P between A and B?
◦
2.7 J
◦
1.0 J
◦
2.2 J
◦
1.6 J
◦
3.2 J
Post by: xMRAZ on Aug 1, 2020
2.2 J
Post by: Jacob Hou on Aug 6, 2020