A right angle triangle with base 3cm, height 4cm and its hypotenuse 5cm.?

Question

A Block 6N is pulled along the hypotenuse. What is the work done against friction in pulling the block from bottom of hypotenuse to its top?

Answer 1

If the block weighs 6N, the potential energy required to lift it is 6×0.04 = 0.24J. However, on the information given, we can't tell how much additional energy is required to overcome friction. On the other hand, if you're saying the block is being pulled with a constant force of 6N, the work done is given by W = Fd = 6×0.05 = 0.3J.