The figure shows an inclined plane.
What is needed the effort to push the load of 240N from A to B if efficiency is 80%?
24N
250N
240N
2kN
Why is less effort needed to lift a load over an inclined plane as compared to lifting the load directly?
An effort of 240 N overcome a useful load 1000 N when applied to a block and system of pulleys; such that the weight movable block and friction is 200 N. What is the efficiency of the system?