A 1 kg rock is hung from one end of a meter at the 0 cm...

A 1 kg rock is hung from one end of a meter at the 0 cm mark so that the meter is balanced as a balance when the filter is at the 25 cm mark. From this information, what is the mass of the meter?

Solutions

Expert Solution

Solution) m1 = 1 kg

M = ?

Net torque = 0

(m1)g(0.25) - (MgL)/(4) = 0

L = 1 m

(1)(0.25) - (M)(0.25) = 0

M(0.25) = 1(0.25)

M = 1 kg

genius_generous answered 2 years ago

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