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7. A ball is dropped from the roof of a tower of heighth. The total distance covered by it in the last secondof its motion is equal to the distance covered by itin first three seconds. The value of h in meters is(g = 10 m/s2)(a) 125(c) 100(b) 200(d) 80 |
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Answer» but in first 3 seconds it will have some velocity u which you have neglected |
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