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If the body is upward the ground then the distance taken is __________

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If the body is upward the ground then the distance taken is __________

(a) Positive

(b) Negative

(c) Imaginary

(d) Gaussian

I have been asked this question in an interview.

Asked question is from Potential Energy Criterion for Equilibrium in section Principle of Virtual Work of Engineering Mechanics

1 Answer

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The correct option is (a) Positive

Easiest explanation: The direction upwards is considered positive. And then the calculations are done. Not only that the direction of the rotation is also concerned with the signs. Positive if on the positive z axis. Negative if towards negative z axis.

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