Estimate the stiffness (k) of a spring in a child’s pogo stick if the child has a mass of 35 kg and bounces once every 2.0 seconds. [ANS = 350 N m-1]
Given:
m=35 kgm=35\:\rm kgm=35kg
T=2.0 sT=2.0\:\rm sT=2.0s
The period of oscillation of a spring pendulum
Hence, the stiffness of a spring
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