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The variation of speed of a train (consisting of an engine and 10 identical passenger coaches each of mass `3 xx 10^(3) kg` ) with respect to time is as given below. Find the tension in the coupling link connecting engine and the first coach at `t = 1 sec`. A. `180 xx 10^(3) N`B. `120 xx 10^(3) N`C. `60 xx 10^(3) N`D. `30 xx 10^(3) N` |
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Answer» Correct Answer - C at `t = 1 sec` `a = 2 m//s^(2)` `T = N (ma) = 10 (3 xx 10^(3)) (+2)` `= + 60 xx 10^(3) N` |
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