At what angle between force and displacement the work done on the body is just 50% of maximum work

Physics with Akhtiar Ali  Bullo

At what angle between force and displacement the work done on the body is just fifty percent of maximum work  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.

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