Question

) A spring balance is used to find the weight of a body X on the surface of the
moon. The mass of the body X is 2 kg and its weight is recorded as 3.4 N. The
weight of another body Y recorded by the same balance is found to be 7.65 N.
Calculate the mass of the body Y.​

Answer 1

Explanation:

The mass of the body Y is 4.5 kg

Body X:

Mass (m) = 2 kg

Weight (W) = 3.4 N

Weight of the Moon is given by the formula:

W = m × gm → Equation (1)

⇒ gm = W/m

On substituting the values, we get,

gm = 3.4/2

∴ gm = 1.7 m/s²

Body Y:

Weight (W) = 7.65 N

On substituting the above values in equation (1), we get,

Mass of Y = W/gm

Mass of Y = 7.65/1.7

∴ Mass of Y = 4.5 kg

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