Respuesta :
Answer:
So an MA of 1 then 2 newtons would be required to lift 20 KG
F = Mass Acceleration = 20 x 10 = 200 Newtons so to lift the same mass with 50 newtons then the mechanical advantage hast to be 200 divided by 50 = 4
The mechanical advantage of the given pulley system is 3.92.
Explanation:
Mechanical advantage is also known as ratio of output force to input force
Given that Input force = 50N and mass of the box = 20kg
Acceleration due to gravity = [tex]9.8 \mathrm{m} / \mathrm{s}^{2}[/tex] Mass of box =20 kg output Force= 20 × 9.8 = 196N
Mechanical Advantage = [tex]\frac{\text { out put force }}{\text { in put force }}[/tex] = [tex]\frac{196}{50}[/tex] = 3.92. Thus the mechanical advantage of the pulley system is 3.92.