A 39 kg child is jumping on a trampoline with a spring constant of 4700 N/m. On aparticular jump, the trampoline extends 0.84 m below its rest level. What heightabove the rest position of the trampoline will the child reach from this jump? A child pulls on a rope attached to a toy duck with a force of 120 N at an angle of45°. The force of friction acting duck is 17 N.Calculate the total work done on the toy if the child pulls the toy 5.4 m.

solution: Apply the conservation of energy for this motion. At the maximum height, the speed becomes…

Answered: A 39 kg child is jumping on a…

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A 39 kg child is jumping on a trampoline with a spring constant of 4700 N/m. On a particular jump, the trampoline extends 0.84 m below its rest level. What height above the rest position of the trampoline will the child reach from this jump?