OpenStudy (anonymous):

A scientist is using a pulley in a laboratory. If the resistance force is 40 Newtons and the effort force is 20 Newtons, what is the mechanical advantage? A. 1 B. 2 C. 3 D. 4 Not math but.. i would appreciate the help :D Wouldnt it be B?... I dont know how to even find the answer ^.^

6 years ago
OpenStudy (anonymous):

I think you're right Mechanical advantage is defined as output force/input force since the machine is a pulley, the input force would be 20 N but the output force would be 40 N based on the nature of the machine so 40N/20N = 2 which is B

6 years ago
OpenStudy (anonymous):

Yay!! Wow thanks! (:

6 years ago
OpenStudy (anonymous):

np

6 years ago