Raghav- of weight 30 kgf- sits at a distance of 2 m from the fulcrum of a see- saw- At what distance from the fulcrum should a boy of weight 40 kg f sitso as to balance the see-saw-A- 1-5 m on the same side as of RaghavB- 1-5 m on the same side as of RaghavC- 1-5 m on the opposite side as of RaghavD- 3 m on the opposite side as of Raghav

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Raghav, of we...

Question

Raghav, of weight $30 k g f$ , sits at a distance of $2 m$ from the fulcrum of a see- saw. At what distance from the fulcrum should a boy of weight $40 k g f$ sit so as to balance the see-saw?

1.5 m on the same side as of Raghav

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1.5 m on the same side as of Raghav

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1.5 m on the opposite side as of Raghav

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3 m on the opposite side as of Raghav

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Solution

The correct option is C 1.5 m on the opposite side as of Raghav
Given,
Weight of the boy $= 30 k g f$
Let the distance of the boy of weight $40 k g f$ from the fulcrum be ‘x’ metre.

Using the principle of moments,
$30 \times 2 = 40 \times x$
$x = 1.5 m$
So, the boy of $40 k g f$ should sit on the opposite side of Raghav at a distance of $1.5 m$ from the fulcrum of the see-saw.

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Raghav, of weight 30 kgf, sits at a distance of 2 m from the fulcrum of a see- saw. At what distance from the fulcrum should a boy of weight 40 kgf sit so as to balance the see-saw?

Raghav, of weight $30 k g f$ , sits at a distance of $2 m$ from the fulcrum of a see- saw. At what distance from the fulcrum should a boy of weight $40 k g f$ sit so as to balance the see-saw?