A resistance of 1400N is being overcome by a simple machine of VR 7 and efficiency of 90% . Find the :-

a) mechanical advantage 
b) effort required to overcome the resistance

Asked by aaditya120105 | 14th Feb, 2019, 07:16: PM

Expert Answer:

Solution is attached. 

Answered by Ankit K | 15th Feb, 2019, 10:27: AM