Q. 55.0( 3 Votes )

Write true or false for the following statements :

In order to get minimum work, the angle between force and displacement should be 90.

Answer :

True

Explanation: When force is applied at an angle to the direction of motion of object then the work in the direction of motion is given by: W = Fs cos θ


If angle θ between force and displacement is 90 then cos θ will be equal to zero.


So, work done will also be zero by the given formula which means minimum.


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