InterviewSolution
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InterviewSolution
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A force `F=50N` is applied at one end of a string, the other end of which is tied to a block of mass `10kg`. The block is free to move on a frictionless horizontal surface. Take initial instant as `theta=30^@` and final instant as `theta=37^@`. For the time between these two instants, answer teh following questions? Find the ratio of initial acceleration to final acceleration of the blockA. (a) `(3sqrt5)/(8)`B. (b) `(8sqrt3)/(5)`C. (c) `(8sqrt5)/(3)`D. (d) `(5sqrt3)/(8)` |
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Answer» Correct Answer - D Initial acceleration `=(F cos 30^@)/(m)` Final acceleration `=(F cos 37^@)/(m)` Ratio `=(cos 30^@)/(cos 37^@)=(sqrt3xx5)/(2xx4)=(5sqrt3)/(8)` |
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