Question

A monkey of mass m (in kg) slides down a light rope attached to a fixed spring
balance, with an acceleration a. The reading on the spring balance is W (in kg) [g is
an acceleration due to gravity]. Which of the following is true?
The force of friction exerted by the rope on the monkey is m (g-a)
(II)
m= Wg/(g-a)
(III) m= W/(1+ a/g)
(IV) The tension in the rope is Wg
(a)
I, II
(b) II, IV
(c)
I, II, III
(d) I, II, IV

Answer 1

Answer:

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