Q 11-05-007NEETNEET 2024Top questionEasy
At any instant of time $t$, the displacement of any particle is given by $2t - 1$ (SI unit) under the influence of force of $5$ N. The value of instantaneous power is (in SI unit):
Answer: (C) $10$
Concept. $P = Fv$.
Step 1. Velocity. $\dfrac{d}{dt}(2t - 1) = 2$ m/s.
Step 2. Power. $5 \times 2 = 10$ W.
Answer. $10$ (Option C).
Solution by Sreeraj P, M.Sc Physics