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With what minimum acceleration can a fir...

With what minimum acceleration can a fireman slide down a rope whose breaking strength is 2/3 of his weight ?

A

`(2)/(3)`g

B

g

C

`(g)/(3)`

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
C
While sliding down with an acceleration `alpha` the force exerted by the man on the rope is
`T = m (g-alpha) implies (2)/(3) mg`
`implies " " alpha = (1)/(3) g`
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