A particle has displacement x=2t−1 (SI units) under a constant force of 5 N acting along displacement. Find instantaneous power.
Physics · Work , Power and Energy · Power
NEET 2024

Question

A particle has displacement x=2t−1 (SI units) under a constant force of 5 N acting along displacement. Find instantaneous power.

G1 Physics · Accepted Answer

Step 1 — Principle: Instantaneous power from a force is P = F·v. Step 2 — Working: Speed v=dx/dt=2 m s⁻¹. Step 3 — Working: Instantaneous power P=Fv=5×2=10 W. Correct answer: D — 10 W.