Question

A resistance of 500 N is overcome by a machine of V.R. 5 and efficiency 80%. Find

i) Mechanical advantage ii) effort required to overcome resistance.​

Answer 1

Answer:

1. i. resistance=500 N  

V.R. 5  

Efficiency 80%

MA= V.R.* efficiency

=5*80/100

=4

ii. MA=L/E

 4=500/E

E=500/4

E=125N

2.