amanchaudhary21 amanchaudhary21
  • 15-09-2022
  • Physics
contestada

When a 21-kg child sits quietly on a playground horse, the spring that supports it compresses by 1.1 cm. Later the child is bouncing up and down on the horse. Determine the rate of change of the child's velocity at a moment when the spring is compressed by 1.42 cm. Take up as positive. Answer in m/s2

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