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A person whose mass is 80 kg is being raised up the side of a cliff...

A person whose mass is 80 kg is being raised up the side of a cliff by a rope with a diameter of 2 cm. They are moving upward with an acceleration of 1 m/s2. The unstretched length of the rope from the top of the cliff to the person is 10 m. The Young's modulus of the rope is 5 X 107 N/m2. What distance does the rope stretch? Ignore the weight of the rope.

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Answer #1

we have to injorose - weight of the rope as we know ky hooks laws 2cm Ak I V pa=1m/2 Y = EL TOLS I (80 xg) N f = 80x9.8N f

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