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A. unit vector
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B. null vector
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C. resultant vector
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D. negative vector
Explanation
A magnitude that has zero magnitude is called a zero vector or null vector.
This type of vector has a magnitude of zero, and its direction is considered arbitrary or indeterminate.
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A. Effort + distance
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B. Effort x distance
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C. Effort ÷ distance
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D. Effort - distance
Explanation
Work done is equal to Effort x distance.
This is represented mathematically as
W=F⋅d, where W is work, F is the force (or effort), and d is the distance over which the force is applied.
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