Answer:
Option B. 4
Explanation:
From the question given above, the following data were obtained:
Input force = 2.5 N
Output force = 10 N
Mechanical advantage (MA) =?
Mechanical advantage (MA) is simply defined as the ratio of the output force to the input force. Mathematically, it can be expressed as:
Mechanical advantage = Output : Input
MA = Output / Input
With the above formula, we can obtain the mechanical advantage of the pulley system as follow:
Input force = 2.5 N
Output force = 10 N
Mechanical advantage (MA) =?
MA = Output / Input
MA = 10/2.5
MA = 4
Thus, the mechanical advantage of the pulley system is 4.
