A man of mass 50 kg is moving up an inclined plane pull a block of mass 25 kg with constant speed 1 m/s. Friction coefficient between block and plane is 0.5. Assuming that man doesn’t slips. Power delivered by man –
Text Solution
Verified by ExpertsThe correct answer is:
A
For mass and block system –
P m + P f + P mg = 0 
k = 0
P m = – (P f + P mg )
[m = mass of block,
M = mass of man]
= 0.65 kW
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