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a meter rule is found to balance the 48cm mark when a body of 60g is suspended at the 6cm mark the balance point shift to the 30cm mark . what is the mass of the meter rule? ?

Mar 24

Calculate?

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Mar 24

Let the mass of the meter rule be M grams.

According to the principle of moments, the total anticlockwise moment about the pivot point must be equal to the total clockwise moment about the pivot point.

At the 48cm mark:

60g * 6cm = M * 48cm

At the 30cm mark:

60g * 24cm = M * 30cm

Solving these two equations simultaneously:

360 = 48M

1440 = 30M

M = 7.5g

Therefore, the mass of the meter rule is 7.5 grams.

According to the principle of moments, the total anticlockwise moment about the pivot point must be equal to the total clockwise moment about the pivot point.

At the 48cm mark:

60g * 6cm = M * 48cm

At the 30cm mark:

60g * 24cm = M * 30cm

Solving these two equations simultaneously:

360 = 48M

1440 = 30M

M = 7.5g

Therefore, the mass of the meter rule is 7.5 grams.

Oluwaseun Adeniyi

Mar 24

It should be 80g