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55) A 0.15-N meter stick is suspended from a spring scale at its 25-cm mark. When...

55) A 0.15-N meter stick is suspended from a spring scale at its 25-cm mark. When an object of unknown mass
is hung from the meter stick on the 10-cm mark, the meter stick is in equilibrium. Draw an extended-body
force diagram for the meter stick and (a) determine the mass of the object and (b) the reading on the spring
scale.

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