+2 votes
in Class 12 by kratos

In the figure shown, a person wants to raise a block lying on the ground to a height h. In both the cases if time required is same then in which case he has to exert more force. Assume pulleys and strings light.

(A) (i)

(B) (ii)

(C) same in both

(D) Cannot be determined

1 Answer

+3 votes
by kratos
 
Best answer

Correct option (A) (i)

Explanation:

Since, h = 1/2at2 => a should be same in both cases, because h and t are same in both cases as given.

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