That depends on the specifics of the problem.
According to the formula, Work done = Force . Displacement So, 200(10) 2000 joules. Hence, the work done by the person will be 2000 joules.
1800 joules / 1 minute = 1,800 joules / 60 seconds = 30 joules per second = 30 watts.
900 Joules of work
360 joules
20 joules
According to the formula, Work done = Force . Displacement So, 200(10) 2000 joules. Hence, the work done by the person will be 2000 joules.
1800 joules / 1 minute = 1,800 joules / 60 seconds = 30 joules per second = 30 watts.
There was 12k Joules of work done.
360 joules
900 Joules of work
20 joules
Work is done in lifting is equal to work done in opposing gravity. Work done in opposing gravity = weight times distance = 700 x 4 =2800 joules
(14 N x 6 m) = 84 newton-meters = 84 joules
Work = (force) x (distance) = 7 x 2.4 = 16.8 joules
The work done is 137 joules. Lifting opposes the acceleration of gravity, which is 9.8 m/sec/sec. 20 x 0.7 x 9.8 = 137 J (kg-m2/sec2)
10 joules
Work = force x distance. Answer is in joules.