Ncert Exercises & Solutions

A person normally weighing 50 kg stands on a massless platform that oscillates up and down harmonically at a frequency of $2.0 s^{- 1}$ and an amplitude of 5.0 cm. A weighing machine on the platform gives the persons weight against time.

1. Will there be any change in the weight of the body, during the oscillation?

2. If the answer to part (1) is yes, what will be the maximum and minimum reading in the machine and at which position?