Questions
In an experiment with a beam balance, an unknown mass m is balanced by two known masses of 16 kg and 4 kg as shown in the figure.
The value of the unknown mass m is
detailed solution
Correct option is C
Balancing the torque:for the first case: 16gl1= mgl2for the second case: mgl1 = 4gl2Divide them to get m = 8 kgTalk to our academic expert!
Similar Questions
A 198 cm tall girl lies on a light (massless) board which is supported by two scales one under the top of her head and one beneath the bottom of her feet (Figure). The two scales read respectively 36 and 30 kg. What distance is the centre of gravity of this girl from the bottom of her feet?
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