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Q.

In fig. shown the man of mass 50 kg is holding block of mass 10 kg. The reading of machine

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a

80 kg

b

90 kg

c

60 kg

d

70 kg

answer is B.

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Detailed Solution

R=mg

=(50+10)10

mg1=60×10[g1=10m/s2]

m=60010=60kg

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