At any instant of time t , the displacement of any particle is given by 2 t-1 (SI unit) under the influence of force of 5 N . The value of instantaneous power is (in SI unit):

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Correct answer: D. 10

aligned x & =2 t-1 v & =(d x)/(d t)=2 ~m ~s^ -1 P & =F . v & =2 × 5=10 ~W aligned

At any instant of time t , the displacement of any particle is...

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