The angle between the applied force and the displacement of the body is θ = 90º. Then work done is ________.
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When force is not quite parallel to displacement, it's like less force is being used to do the work. That's also pretty simple. When the angle between force and displacement reaches 90°, the component of the force parallel to the displacement reduces to zero.
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THE WORK DONE=0
WORK DONE=m*g*s cos θ
work done=m*g*s*cos90
work done=m*g*s*0[cos90=0]
anything multiplied by 0 gives 0
WORK DONE=0 J
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