MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 1. [1/2 Points] DETAILS PREVIOUS ANSWERS SERCP11GE 5.P.001. Iranian politician Hossein Rezazadeh holds a weightlifting world record in the clean-and-jerk, an event in which he lifted a 2,580 N set of weights through a vertical distance of approximately 2.00 m. (a) How much mechanical work (in J) did Hossein do during the lift, assuming he lifted the weights at constant speed? 5160 J (b) How much work (in J) does he do if he lowers the weights, allowing them to accelerate at 2.45 m/s? (Assume he lowers the weights through the same vertical distance through which he raised them.) J 6450 eBook