A body which is constrained to move along Y-direction is acted upon by a force F-2-15-6k-N- The work done by this force in displacing the body by 10 m along Y-axis is-

The correct option is C 150 J W=F⃗.S⃗=( 2î+15j⃗+6j⃗).(10j⃗)=150 J ...

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Standard XII

Physics

Multiplication with Vectors

A body which ...

Question

A body which is constrained to move along Y-direction is acted upon by a force $\to F = (- 2^i + 15^j + 6^k) N$ . The work done by this force in displacing the body by $10$ m along Y-axis is-

105 J

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150 J

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250 J

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100 J

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Solution

The correct option is C 150 J
$W = \to F . \to S = (- 2^i + 15 \to j + 6 \to j) . (10 \to j) = 150 J$

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A body which is constrained to move along Y-direction is acted upon by a force →F=(−2^i+15^j+6^k)N. The work done by this force in displacing the body by 10 m along Y-axis is-

The correct option is C 150 JW=→F.→S=(−2^i+15→j+6→j).(10→j)=150J

A body which is constrained to move along Y-direction is acted upon by a force $\to F = (- 2^i + 15^j + 6^k) N$ . The work done by this force in displacing the body by $10$ m along Y-axis is-

The correct option is C 150 J
$W = \to F . \to S = (- 2^i + 15 \to j + 6 \to j) . (10 \to j) = 150 J$