Mechanics> ques2...

A person of 50kg stands on 25kg platform. he pulls on the rope which is attached to the platform via the frictionless pulleys.the platforms move upward at the steady rate if the force with which the person pulls the rope is

a) 500N

b) 250N

c) 25N

d) none of these

ans = (b)

neeraj pawar , 16 Years ago

Grade 12

2 Answers

Pratham Ashish

hi , fbd of plateform

if plateform moves pward with steady state ,

3F =( 50 + 25 ) g

take g = 10 m/ sec^2

F = 250 N

Last Activity: 16 Years ago

Gurjit kaur

Here tension is T and 2T+T=750 and T=750/3 =250 Newton in this question tension =force so F=250N and force with which the person pulls the rope is tension

Last Activity: 7 Years ago

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Mechanics> ques2...

A person of 50kg stands on 25kg platform. he pulls on the rope which is attached to the platform via the frictionless pulleys.the platforms move upward at the steady rate if the force with which the person pulls the rope is a) 500N b) 250N c) 25N d) none of these ans = (b)

neeraj pawar , 16 Years ago

Pratham Ashish

Gurjit kaur

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