A force of 10 N acts on a body of mass 1.0 kg at rest. Find the work done in 4 seconds.

A force of 10 N acts on a body of mass 1.0 kg at rest. Find the work d

1.	A force of 10 N acts on a body of mass 1.0 kg at rest. Find the work done in 4 seconds.
Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :F = 10 N,m = 1.0 kg , u = 0, t = 4s, acceleration `a = (F)/(m) xx (10)/(1) = <a href="https://interviewquestions.tuteehub.com/tag/10ms-267176" style="font-weight:bold;" target="_blank" title="Click to know more about 10MS">10MS</a>^(-1)`. <br/> Its displacement `S=ut+(1)/(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)at^(2)=0+(1)/(2)(10)4^(2)=80m` <br/> The work done W = FS = <a href="https://interviewquestions.tuteehub.com/tag/mas-1088358" style="font-weight:bold;" target="_blank" title="Click to know more about MAS">MAS</a> = `1.0 xx 10 xx <a href="https://interviewquestions.tuteehub.com/tag/80-337972" style="font-weight:bold;" target="_blank" title="Click to know more about 80">80</a> = 800j`</body></html>