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15. A stone thrownvertically upwards with aninitial velocity 30 metre persecond comes to a stop in 5 s.Find the retardation. |
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Answer» -6m/s² Explanation: final velocity : 0m/s Time : 5sec retardation = v-u/t = 0-30/5 = -30/5 = -6m/s²
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