At what angle between force and displacement the work done on the body is just fifty percent of maximum work
Physics class 11th mcqs
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Physics class 11th mcqs
Mdcat physics mcqs
First year physics mcqs
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00:00Question says at what angle between force and displacement the work done on the body
00:17is just 50% of maximum work a 30 degree b 45 degree c 60 degree d 90 degree is work
00:32done is calculated by using formula W is equal to Fd cos theta in terms of angles so work
00:46done will be equal to Fd into cos is when angle is 60 as the value of cos 60 degree
01:00is 1 upon 2 so work done will be half at 60 degree means it will be 50% so the correct
01:23option will be c 60 degree at 60 degree work done will be 50% of maximum work.