InterviewSolution
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InterviewSolution
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The x and y coordinates of the particle at any time are `x=5t-2t^(2) and y=10t` respectively, where x and y are in meters and t in seconds. The acceleration of the particle at t=2s is:A. `5m//s^(2)`B. `-4m//s^(2)`C. `-8m//s^(2)`D. `0` |
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Answer» Correct Answer - b `v_(x)=5-4t, v_(y)=10` `a_(x)=-4, a_(y)=0` `veca=a_(x)hati+a_(y)hatj` `veca=-4hatim//s^(2)` |
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