A body of mass 120 kg is taken vertically upward to reach the height of 5 m. Calculate the work done.
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work done = F * S
F = mg = 120* 9.8 = 1176 N
s = h = 5 m
work done = F *S = 1176 * 5 = 5880 joule
F = mg = 120* 9.8 = 1176 N
s = h = 5 m
work done = F *S = 1176 * 5 = 5880 joule
bhavyadeep31yad:
i told take g= 10 m/s
but thanks
you didnt write to take g = 10 .and welcome
soryy!!
but it should be negative right?
cause its against the gravity
work done by gravity will be negative ,but here we are working so direction of our force and displacement is same so it will be positive
Answered by
1
Work done against gravity is mgh m=120 kg h=5m g=9.8 m/s square 120 x 5 x 9.8 =5880 kgm^2/s^2
i told take g= 10 m/s
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