If a spring constant is 60 n/m and an object hanging from it stretches it to 0.50 m, what is the mass of that object?

Since the spring is in vertical position, we determine the force it exerts to the spring by multiplying the spring constant with the length that the spring stretches. That is,
                                    force = (60 N/m)(0.50 m)
                                              = 30 N
Then, we divide the calculated force by the acceleration due to gravity, 9.8 m/s², giving us the answer of 3.06 kg.

Hence, the mass of the object is approximately 3.06 kg. 

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