A body of mass 1 kg is lifted through aheight of 1m. Calculate the work done
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The Work done will be zero.
REASON =>
Work = F(vector) . s(vector)
W = F × s × cos¢
Now, because the body is lifted vertically so, the angle between the "displacement vector" and "horizontal component of Force vector" will be 90°.
So,
W = F × s × cos90°
W = F × s × 0..............{ cos90° = 0 }
W = 0.....●
Thus, Work done = 0.........●
●●●●●●●●●●●●●●●●●●
Hope it was helpful.
REASON =>
Work = F(vector) . s(vector)
W = F × s × cos¢
Now, because the body is lifted vertically so, the angle between the "displacement vector" and "horizontal component of Force vector" will be 90°.
So,
W = F × s × cos90°
W = F × s × 0..............{ cos90° = 0 }
W = 0.....●
Thus, Work done = 0.........●
●●●●●●●●●●●●●●●●●●
Hope it was helpful.
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