Question

not really sure where to start or how to solve for it. super new at physics. ^{**This was all that was provided. the question was screenshot. They did not provide numerical numbers so I am not sure if it was a glitch with sapling.*}** (PLEASE notice the astrics! thank you)

A painter loses his balance and falls from the top step of a two-step step stool, but still manages to land on his feet. Estimate the magnitude aavg of his average acceleration when he hits the ground, assuming his knees don't flex a- m/s2 avg Estimate the magnitude aavg of his average acceleration if his knees do flex as he hits the ground m/s2 avg

Answer 1

solution (9) A two step stool may be assumed to has a height = h= 2. 5m. so the velocity gained by Painter just before hitting the ground = v= ſegh OR V= 2x9.8*2.5 = 70 m/s Let after striking with ground he came to a complete rest within a time interval al or 20 seconds, and his knees don't flex so aaug = 10-20%= 35 m/s2 larg = 35.0 m/s2 (6) when the knees doflex as he hits the ground, so he will take more time to return to complete rest Assume he take total time =t=0130 seconds in this case 70 = 23:33,2 so darg = 10.30 Garg = [23: 33] misa