Question

What Effort Will Be Required to Lift a Load of 500 N by a Single Movable Pulley? Hint: Mechanical Advantage of a Single Movable Pulley is Two

Answer 1

For the single movable pulley

$\frac{F}{F_1}=2\implies$

$F_1=\frac{F}{2}=\frac{500}{2}=250~N.$