Question

An d le e shu 1 m the picture below perfo' ms vdnous physicdl exercises The pd dme ers or the dthlete dre d ullows. The he'uht rrum the nuo o che pdlm of he hands length from the hip to the knee is w_o.om, and the height from the floor to the hip i: k-1.02°m. The diameter cf te pate on the barbell is L-0 45m. dised uve hedd s l-2.225m the length or the r su rorn h p LO shoulders s h 0.8m the and then stands right up. For the c san and jerk the athlete The thlete pc forms two mo cments: a 444.5 b squat and 교 227 b c can and jcrk. For thc squat the oar is resting on thc shoulders. The athlete starts in the bottom of the squat with hips level with the evantually brings the harhell loaded with plates trom the tloor to the averhead and drope It trom tha top. nces What is the work done by the athlete on the barbell during each of these movements? Use q-9.8 ms in your calculations. For the up and down motionis) add up the absolute values of mechanical work. nswer= 741 If squat took 3.1s and da and jerk took the same 3.1s to complcte, which movement is more powerful? squat because it's more work in the same pericd of time Squat hecause it's heavier Clean and jerk because it is much lighter so it moves faster Squat because its range of motion is shorter clean and jerk becouse its range of motion is lorgar The same tor both because work and time to execute are the same

need help on work

Answer 1

uat 드mah &quot: 444,5 lb 444,5 x o. 4535 k 201, 58 k 20153 x 9.8x1, y 2-765-68 J 5717 x 9,8 × (2:22-0-225) 57.59 x 9.8 x 2- : 112%,'K wink in thelorneトU1fod ot t ime