1.

A point traverses half a circle of radius R during the interval `tau`.Calculate the following quantities averaged over that time (a)the mean velocity that is speed ltvgt , (b)the modulus of the mean vector lt v gt , ( c)the modulus of the average acceleration a if its tangential acceleration is constant.

Answer» Correct Answer - < v > =`(piR)/tau`,`l lt vevugtl=(2R)/tau , (2piR)/(tau^2)`


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