Basic Maths and Units and DimensionsEasy
Question
A man of mass 60 kg is standing on a platform of mass 40 kg as shown in figure then what force man should apply on rope so that he accelerate up with the platform with acceleration of 2 m/s2 :-
Options
A.300 N
B.400 N
C.500 N
D.600 N
Solution
On platform
2T - N - 40g = 40 × 2 ...(1)
On man
T + N - 60g = 60 × 2 ...(2)
Solving (1) & (2)
T = 400N
2T - N - 40g = 40 × 2 ...(1)
On man
T + N - 60g = 60 × 2 ...(2)
Solving (1) & (2)
T = 400N
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