A rod of length 2m and mass 0.5kg is fixed at one end and allowed to hang vertically from a rigid support. Find the work done in raising the other end of the rod until it makes an angle of 60^(@) with the vertical. (g = 10 ms^(-2))

A rod of length 2m and mass 0.5kg is fixed at one end and allowed to h

1.	A rod of length 2m and mass 0.5kg is fixed at one end and allowed to hang vertically from a rigid support. Find the work done in raising the other end of the rod until it makes an angle of 60^(@) with the vertical. (g = 10 ms^(-2))
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> :`m= 0.5kg, l= <a href="https://interviewquestions.tuteehub.com/tag/2m-300757" style="font-weight:bold;" target="_blank" title="Click to know more about 2M">2M</a>, theta = <a href="https://interviewquestions.tuteehub.com/tag/60-328817" style="font-weight:bold;" target="_blank" title="Click to know more about 60">60</a>^(@)` <br/> <a href="https://interviewquestions.tuteehub.com/tag/word-1458917" style="font-weight:bold;" target="_blank" title="Click to know more about WORD">WORD</a> done `W= mg (l)/(2) (1- cos theta)` <br/> `=0.5 xx <a href="https://interviewquestions.tuteehub.com/tag/10-261113" style="font-weight:bold;" target="_blank" title="Click to know more about 10">10</a> xx(2)/(2) (1- cos 60^(@))` <br/> `=5 xx (1 - (1)/(2))= 5 xx (1)/(2) = 2.5J`</body></html>