A body of weight W is lifted through a height h by application of force F over a time t using a lever. Choose the correct option.

Options

1. AWhen W is kept between the fulcrum and F , it needs a force greater than W to lift it by h .
2. BIf the fulcrum is between W and F , the mechanical advantage is always greater than when it is kept at any one
3. CIf F is applied at a point on the lever between the fulcrum and W , then the body will be lifted by maximum di
4. DIrrespective of the position of the fulcrum, F must always be directed in the direction of the lift.