Physics-
General
Easy

Question

A particle starts from rest at t equals 0 and undergoes an acceleration a in m s to the power of negative 2 end exponent with time t in second which is as shownWhich one of the following plot represents velocity v in m s to the power of negative 1 end exponent blank v e r s u s time t in second?

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The correct answer is:


    A particle starts from rest at t equals 0
    The equation of motion
    v equals u plus a t equals 0 plus 3 cross times 2 equals 6 blank m s to the power of negative 1 end exponent
    The velocity for next 2 s
    v to the power of ´ end exponent equals v plus a t
    blank equals 6 minus 3 cross times 2 equals 0
    v to the power of ´ end exponent equals 0

    Hence, v minus t graph will be as shown.

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