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Question

An elevator weighing 100 kg attains an upward velocity of 4 m/sec in two seconds with uniform acceleration. The tension in the supporting cables will be

100 किलोग्राम वजनी एक लिफ्ट एकसमान त्वरण के साथ दो सेकंड में 4 मीटर/सेकंड का ऊपर की ओर वेग प्राप्त कर लेती है। सहायक केबलों में तनाव होगा

A.

1000 N

B.

800 N

C.

1200 N

D.

None of these

Answer ( Option C)

1200 N

Solution

Given : Weight of the elevator (w) = 100kg

Upward velocity (v) = 4m/s

Acceleration 

Now, Tension in cable is given by,

Hence, the correct option is (C).

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