A body of mass 1kg begins to move under the action of a time dependent force F = (i + 3t^2j) 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.

A body of mass 1kg begins to move under the action of a… — JEE Main 2023 Physics PYQ

JEE Main 2023 · 24 Jan · Shift 2 · numerical answer

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

\vec{F} = (\hat{i} + 3t^2\hat{j})

N, where

\hat{i}

and

\hat{j}

are the unit vectors along x and y axis. The power developed by above force, at the time t = 2s, will be __________ W.

Show answer

Answer: 100

[JEE Main 2023 · 24 Jan · Shift 2]

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