AMA value is 4.
Explanation:
AMA is known as Actual mechanical advantage
It can be calculated by the following formula
MA = FB / FA
MA = mechanical advantage,
FB = force of the object
FA = effort to overcome the force of the object.
Given: FB=200
FA=50
MA=200/50
MA=4
Actual mechanical advantage takes into account energy loss due to deflection, friction, and wear.