Why is less effort needed to lift a load over an inclined plane as compared to lifting the load directly ?

Figure shows a block and tackle system of pulleys used to lift a load. (a) How many strands of tackle are supporting the load ? (b) Draw arrows to represent tension T in each strand. (c) What is the mechanical advantage of the system? (d) When load is pulled up by a distance 1 m, how far does the effort end move ? (e) How much effort is needed to lift a load of 100 N?

1000 N force is required to lift a hook nd 10000 N force is reuires to lift a load slowly.Find power required to lift hook with load with speed v=0.5 m//s

Moving up an object along an inclined plane requires ......lifting it vertically up

A weight w is to be moved from the bottom to the top of an inclined plane of inclination theta to the horizontal. If a smaller force is to be applied to drag it along the plane in comparison to lift it vertically up, the coefficient of friction should be such that.

In fig Block m_(2) is loaded on block m_(1) . If there is no relative sliding between the block and the inclined plane is smooth , find the friction force between the block

The effort applied to lift a 60 N box using a simple machine is 45 N. Find the MA of the machine.

The ratio of the load to the effort