Answer:
The mechanical advantage of the pulley is 1.
Explanation:
The mechanical advantage of the pulley is given as
[tex]MA=\frac{F}{f}[/tex]
Here, MA is represent for the mechanical advantage of the pulley, F is load for lift and f applied force.
Given F =21 N and f= 21 N.
Substitute the given values, we get
[tex]MA=\frac{21N}{21N}[/tex]
MA = 1.
Thus, the mechanical advantage of the pulley is 1.
