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A boy is standing on a weighing machine ...

A boy is standing on a weighing machine placed on a horizontal platform. The reading of weighing machine is 70 kg. Using a suitable mechanism the platform is made to execute harmonic vibrations with a frequency of 1 vibration per second. Calculate the maximum and minimum force exerted on the boy if the amplitude of vibration of platform is 6 cm.

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To solve the problem, we need to calculate the maximum and minimum force exerted on the boy standing on a weighing machine that is vibrating harmonically. Here are the steps to arrive at the solution: ### Step 1: Understand the Given Data - The mass of the boy (m) = 70 kg - The frequency of vibration (f) = 1 vibration per second - The amplitude of vibration (A) = 6 cm = 0.06 m - Acceleration due to gravity (g) = 10 m/s² (for simplicity) ...
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