[0/2 Points] DETAILS PREVIOUS ANSWERS OBINPHYS8 3.P.023. MY NOTES A 31 kg child uses a pogo stick to bounce up and down. The spring constant, k, of the toy equals 9,050 N/m. (a) By how much would the spring be compressed by the child if she simply balanced herself vertically on the pedals of the stick? (Give your answer in cm.) * cm (b) How much energy (in ]) is stored in the spring under this circumstance? . . .....". lix J Enter a number