a weightlifter raises a 70 kg barbell from the floor to a height of 2.2m in 1.2s. What was his average power output during the lift?

Answer 1

Power=work/time
Work=force*distance
w=(9.81m/s*70kg)*2.2m
w=1510.74 Newton

P=1510.74N/1.2s
P=1259.95 watts or 1.26 Kilowatts

Answer 2

the unit for work should be Joule,nut newton..

Answer 3

the unit for work should be Joule,not newton..