Work, Energy and Power

Related Questions

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• A force acts on a 30 gm particle in such a way that the position of the particle as a function of time is given by $x = 3t - 4{t^2} + {t^3}$, where x is in metres and t is in seconds. The work done during the first 4 seconds is

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• A particle moves from position ${\vec r_1} = \,3\hat i + 2\hat j - 6\hat k$ to position ${\vec r_2} = 14\hat i + 13\hat j + 9\hat k$ under the action of force $4\hat i + \hat j + 3\hat k\,N.$ The work done will be

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