Question

please answer this quick​

Answer 1

Answer:

1)

Load and effort are in opposite direction

M.A=

effortrequired

LLoadlifte = EE = 59

=1.8

V.R=

distancemovedbyload

distancemovedbyeffort

= ηM.A

(c) If efficiency is η=100%

η=

V.R

M.AV.R= 1 1.8

=1.8

(d) If efficiency is η=50%=0.5

η= V.RM.A

V.R=

0.5

1.8

=3.6