An object with a mass of #6 kg# is hanging from a spring with a constant of #12 (kg)/s^2#. If the spring is stretched by # 9 m#, what is the net force on the object?

Answer 1

The net force #=48N#

The net force on the object is the difference between the force of the spring pulling up and the weight of the object. The weight of the object (acting downwards) is #=6g=60 N# The force of the spring (acting upwards) is #=12*9 N=108 N# So there is a net force (acting upwards) of #=(108-60) N=48 N#

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Answer 2

Julia Aguilar

The net force on the object is 108 N.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.