A man stands on a weighing machine placed on a horizontal platform. the machine reads 50 kg. by means of a suitable mechanism the platform is made to execute ha

A man stands on a weighing machine placed on a horizontal platform. The machine reads 50 kg. By means of a suitable mechanism the platform is made to execute harmonic vibrations up and down with a frequency of 2 vibrations per second. What will be the effect on the reading of the weighing machine? The amplitude of vibration of platform is 5 cm. Take g = 10 ms-2. (A) Between 10.5 kg and 90.5 kg 2. (B) Between 9.5 kg and 90.5 kg (C) Between 8.9 kg' and 89.5 kg (D) Between 10.5 kg' and 89.5 kg