An object with a mass of #7 kg# is hanging from a spring with a constant of #2 (kg)/s^2#. If the spring is stretched by # 14 m#, what is the net force on the object?

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Answer 1 · 2017-05-12T07:00:33

The net force is #=40.6N# downwards

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Mass of object #m=7kg#

The spring constant is #k=2kgs^-2#

Extension of the spring is #x=14m#

Resolving in the vertical direction #uarr^+#

The net force is #F=2*14-7g#

#=28-7g=-40.6N#

There is a net force of #40.6N# acting downwards