Question

Study the given diagram and calculate the following:

i) work done by load
ii)work done by effort
iii)M.A
iv)V.R
v)efficiency[friction is neglected]​

Answer 1

Explanation:

Distance moved by the load   Dload=15 m

Given :   VR=4

Let the distance moved by the effort be  Deffort

Using   VR=LloadDeffort

∴   4=15Deffort

⟹ Feffort=60 m

Work done by the effort   Weffort=Feffort×Deffort

∴   Weffort=50×60=3000 J