An object with a mass of #8 kg# is hanging from a spring with a constant of #9 (kg)/s^2#. If the spring is stretched by # 5 m#, what is the net force on the object?

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Answer 1 · 2017-07-08T06:01:50

The net force is #=6.4N# acting downwards

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The mass is #m=8kg#

The spring constant is #k=9kgs^-2#

Resolving in a vertical direction #uarr^+#

The net force is

#F=k*x-mg#

#=8*9-8*9.8#

#=-6.4N#