A man stands on a weighing machin palced on a horizontal platform the machine reads 50kg. By mean of a suitable mechanism, the platform is made to execute harmonic vibrations up and down with a frequency of 2 vibration per second. What will be the effect on the readin of the weighing machin? Teh amplitude of vibration of platform is 5cm. Take `g=10ms^(-1)`

Explanation

To solve the problem, we will analyze the effect of the harmonic vibrations on the reading of the weighing machine. The steps are as follows:

### Step 1: Understand the situation
A man is standing on a weighing machine that reads 50 kg, which corresponds to a weight of \( W = mg = 50 \, \text{kg} \times 10 \, \text{m/s}^2 = 500 \, \text{N} \).

### Step 2: Determine the frequency and amplitude of the vibrations
The platform is vibrating with a frequency of \( f = 2 \, \text{Hz} \) and an amplitude of \( A = 5 \, \text{cm} = 0.05 \, \text{m} \).

...