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Byju's Answer

Standard XII

Physics

Multiplication with Vectors

A body, const...

Question

A body, constrained to move in Y-direction is subjected to a force F = (– 2i + 15j + 6k)N. What is the work done by this force in moving the body through a distance of 10 m along the Y-axis?

20 J

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150 J

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160 J

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190 J

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Solution

The correct option is B
150 J

W = (Y-component of force) $\times$ (displacement along Y-axis)

= 15 $\times$ 10 = 150 J

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A body, constrained to move in Y-direction is subjected to a force F = (– 2i + 15j + 6k)N. What is the work done by this force in moving the body through a distance of 10 m along the Y-axis?

The correct option is B 150 J W = (Y-component of force) × (displacement along Y-axis) = 15 × 10 = 150 J

The correct option is B
150 J

W = (Y-component of force) $\times$ (displacement along Y-axis)

= 15 $\times$ 10 = 150 J