A load of mass 30 kg is lifted up by 7.0 m. Calculate the work done. (Take g=9.8 m s-².

Asked by Bhagatsania12 | 24th Sep, 2018, 10:52: PM

Expert Answer:

We know that when an object is raised above at certain height,
Potential energy= work done = m x g x h 
 
m = 30 kg 
g = 9.8 m/s2
h= 7 m
 
thus, work done = 30 x 9.8 x 7 = 2058 Joules. 

Answered by Shiwani Sawant | 25th Sep, 2018, 03:59: PM