# physics repost

How much work is a 200 kg weightlifter doing while he holds a 1000 kg barbell stationary .75 m over his head?

1000(.75)
= 7350 J

1. 👍 0
2. 👎 0
3. 👁 45
1. Stationary...no change in height is occuring.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### physics

How much work is a 200 kg weightlifter doing while he holds a 1000 kg barbell stationary .75 m over his head? 1000(.75) = 7350 J

asked by Jon on April 3, 2008
2. ### physics

A weightlifter holding a 500 kg barbell waist high carries the barbell at a constant height and a constant speed to a rack 2 m away, and places the barbell on the rack at the same height at which he was carrying it. How much work

asked by kalisha on March 13, 2010
3. ### science

a weightlifter raises a 200-kg barbell with an acceleration of 3 m/s. How much force does the weightlifter use to raise the barb?

asked by anoynomous on October 8, 2010
4. ### physical science

Trying to find the power to this ?. A weightlifter lifts a 1250-n barbell 2meters in 3seconds. How much power was used to lift the barbell? Do you have to find the work first??

asked by Liam on April 26, 2011
5. ### ohysical science

A weightlifter raises a 200-kg barbell through a height of 2 m in 2.2 s. The average power he develops during the lift is

asked by Anonymous on January 30, 2012
6. ### Physics

How much work does a weightlifter do on a 450 N barbell thathe lifts 2m into the air

asked by Emma Roberts on January 12, 2016
7. ### Physics

A weightlifter raises a 200 kg barbell over his head from the floor a displacement of 2m in 2.2 seconds. What is the average power he develops during the lift?

asked by Anonymous on November 26, 2017
8. ### college physics

A weightlifter has a basal metabolic rate of 92.4 W. As he is working out, his metabolic rate increases by about 650 W. (a) How many hours does it take him to work off a 450 Calorie bagel if he stays in bed all day? (b) How long

asked by Anonymous on November 12, 2013
9. ### College Physics

A weightlifter has a basal metabolic rate of 64.6 W. As he is working out, his metabolic rate increases by about 650 W. (a) How many hours does it take him to work off a 450 Calorie bagel if he stays in bed all day? (b) How long

asked by Maria on November 24, 2014
10. ### physics

A weightlifter has a basal metabolic rate of 64.6 W. As he is working out, his metabolic rate increases by about 650 W. (a) How many hours does it take him to work off a 450 Calorie bagel if he stays in bed all day? (b) How long

asked by Maria on November 24, 2014

More Similar Questions