A body of mass 1kg begins to move under the action of a time dependent force F = (t i + 3t² j) N, where i and j are the unit vectors along x and y axis. The power developed by above force, at the time t = 2s, will be _ _ _ _ _ _ W.

Work, Energy and Power: JEE Main 2023 Physics question

JEE Main 2023 · 24 Jan, Evening shift · Q72

JEE Main 202324 Jan, Evening shiftPhysicsMediumWork, Energy and Power70× since 2002

A body of mass 1kg begins to move under the action of a time dependent force

\overrightarrow F = \left( {t\widehat i + 3{t^2}\,\widehat j} \right)

N, where

\widehat i

and

\widehat j

are the unit vectors along

x

and

y

axis. The power developed by above force, at the time t = 2s, will be ____________ W.

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2023 Work, Energy and Power Question with Answer (24 Jan Evening shift, Q72) | JEE Arc