6. A boy pushes his little brother in a box with a force of 500 N for 324 m How much work is this if the force of

friction acting on the sliding box is (a) 100 N (6) 250. N?

6. A boy pushes his little brother in a box with a force of 500 N for 324 m How much work is this if the force of

friction acting on the sliding box is (a) 100 N (6) 250. N?