A deadlift is a weightlifting exercise in which a weighted bar is raised straight up from the ground, pulled to the height of the weight lifter's hips, and then placed back on the ground. The world record for deadlifting is 500kg.
(a) How much work did the world record lifter do in raising the bar up to a height of 95 cm?
(b) How much work did he do while lowering the bar back to the ground?

you have to draw the persons position over there

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.