NEET 2024 — Physics solution

NEET2024Physics

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):

A
7
B
6
C
10
D
5

Solution

Velocity $v = \frac{d x}{d t} = \frac{d ( 2 t - 1 )}{d t} = 2$ m/s.

Instantaneous power $P = F v = 5 \times 2 = 10$ W.

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