An object with a mass of #3 kg# is hanging from a spring with a constant of #8 (kg)/s^2#. If the spring is stretched by #8 m#, what is the net force on the object?

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Answer 1 · 2017-03-10T15:15:43

The net force is #=34.6N# acting upwards

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Let's resolve in the vertical direction #uarr^+#

#F_1=kx=8*8=64N#

#F_2=-3g=-3g=-29.4N#

The net force is

#F=F_1+F_2=64-29.4=34.6N#

The force is acting upwards,