Ben and Jerry arch rivals decide to have a weight lifting

Last updated: 5/3/2023

Ben and Jerry arch rivals decide to have a weight lifting contest during PE Ready set gol Ben and Jerry both lift a 250 kg barbell 10 times over their heads They are approximately the same height and lift the barbell the same distance in the air It takes Ben 5 seconds to complete 10 lifts it takes Jerry 25 seconds to complete his 10 lifts Which statement is MOST accurate regarding the weightlifting contest A B 9 D A B As a physical science demonstration Jack and Jill ran up the hill at the football stadium Jack is twice as massive as Jill but Jill runs the same distance in half the time 9 Compare the work done and power of Jack and Jill D Ben did more work than Jerry Ben has more power than Jerry A Ben and Jerry have the same power B Ben does more work and is more powerful than Jerry C Jack did more work than Jill but Jill has more power Jill did more work than Jack but Jack had more power Jack did more work than Jill but Jill has as much power as Jack Jack and Jill did the same amount of work but Jack had more power Students performed a stair climbing experiment to investigate the power output of the human body Each student climbed a set of stairs while another student used a stopwatch to time the climb The body mass time and vertical height reached by four students is given in the table Estimate g as 10 m s Which student generated the GREATEST amount of power in the experiment Armena Data Table 1 Power Student Mass kg Time s Vertical height m O Neill 16 6 0 12 6 0 17 6 0 13 6 0 Franklin 70 Mari 55 Franklin 80 Armena 65 Mari