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ICSE Class 10 Physics Question 10 of 27

Solved Sample Paper 1 — Question 22

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Question

Question 2(vii)

A meter scale is balanced in horizontal position as shown in figure below. Find the value of w.

A meter scale is balanced in horizontal position as shown in figure below. Find the value of w. Physics Sample Paper Solved ICSE Class 10.
Answer

From the given figure we can see that,

Anticlockwise moment = 6 kg × 60 cm
Clockwise moment = w × 40 cm

As we know, the principle of moments states that

Anticlockwise moment = Clockwise moment.

6×60=w×40⇒w=6×6040⇒w=9 kg6 \times 60 = \text{w} \times 40 \\[0.5em] \Rightarrow \text{w} = \dfrac{6 \times 60}{40}\\[0.5em] \Rightarrow \text{w} = 9 \text{ kg} \\[0.5em]

Hence, the value of w = 9 kg