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Work Energy and Power question

2016 · Q145
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Work Energy and Power question

2016 · Q145

NEETPhysicsWork Energy and PowerMCQ+4 / −1
A body of mass 1 kg begins to move under the action of a time dependent force F→=(2ti^+3t2J^)N,\overrightarrow F = \left( {2t\widehat i + 3{t^2}\widehat J} \right)N,F=(2ti+3t2J)N, where i^{\widehat i}i and j^{\widehat j}j​ are unit vectors along x and y axis. What power will be developed by the force at the time t ?
  1. A
    (2t3 + 3t4) W
  2. B
    (2t3 + 3t5) W
  3. C
    (2t2 + 3t3) W
  4. D
    (2t2 + 4t4) W
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