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An object take 5 sec to reach the ground from the height of 5 m on the planet what is value of g on planet |
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Answer» Time taken, t = 5 secondsDisplacement, s = 5 metresInitial velocity, U = 0 metres/secondLet the ACCELERATION be a m/s2m/s2.When the acceleration is constant, initial velocity, acceleration, time taken and displacement are RELATED by a simple FORMULA:s=ut+(1/2)at2s=ut+(1/2)at2Therefore,5=(0)(5)+(1/2)(a)(52)5=(0)(5)+(1/2)(a)(52)a×(25/2)=5a×(25/2)=5a=5/(25/2)a=5/(25/2)a=10/25a=10/25a=2/5a=0•4 |
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