Question: 9. (Total points = 6) While performing a clean and jerk, competitive weightlifter Deadlift Ferris lifted a barbell with a mass of 200 kg from

9. (Total points = 6) While performing a clean and jerk, competitive weightlifter "Deadlift" Ferris lifted a barbell with a mass of 200 kg from the floor a total height of 1.0 m in 0.9 seconds. How much mechanical work did "Deadlift perform on the bar? (2 pts) What was "Deadlift's" average power output during the lift? (2 pts) Assuming 25% efficiency, how much metabolic energy (in Calories) did "Deadlift" expend during the lift? (2 pts) A useful equation and conversion for part C: mech work (cal) efficiency= convert J to cal : 1J =0.239 cal met energy expended (cal)

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