InterviewSolution
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InterviewSolution
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a body starting from the rest moves with a uniform acceleration of 0.02 m/s² for 5 minutes. calculate the speed acquired and the distance travelled in this time. |
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Answer» Speed acquired = 1800 m/sDistance travelled = 900 mExplanation:Tip: In questions of Physics, always try to begin answering by mentioning the information you've been GIVEN. This proves to be much helpful in problem solving.Given information-Initial velocity, U = 0 m/s (REST))Final velocity, v = ?Uniform acceleration, a = 0.02 m/s²Time, t = 5 minutes = 5 * 60 = 300 secondsBy Newton's laws of motion,v = u + at=> v = 0 + 0.02 * (300)²=> v = 0.02 * 90000 = 2 * 900=> v = 1800 m/sAgain by Newton's laws of motion,S = UT + (1/2)at²=> S = 0t + (1/2)(0.02)(90000)=> S = 900 m |
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