A particle moves with a velocity ( 5 i ^ − 3 j ^ + 6 k ^ ) ms − 1 horizontally under the action of constant force ( 10 i ^ + 10 j ^ + 20 k ^ ) N . The instantaneous power supplied to the particle is:NEET 2023 (Manipur)

Instantaneous power is given by P = F ⋅ V P = [ 10 i ^ + 10 j ^ + 20 k ^ ] ⋅ [ 5 i ^ − 3 j ^ + 6 k ^ ] W = [ 50 − 30 + 120 ] W = 140 W

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Physics - W.E.P. Question with Solution | TestHub

PhysicsW.E.P.PowerMedium2 minPYQ_2023

PhysicsMediumsingle choice

A particle moves with a velocity $(5 \hat{i} - 3 \hat{j} + 6 \hat{k}) ms^{- 1}$ horizontally under the action of constant force $(10 \hat{i} + 10 \hat{j} + 20 \hat{k}) N$ . The instantaneous power supplied to the particle is:NEET 2023 (Manipur)

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Solution:

Instantaneous power is given by $P = F \cdot V$ $P = [10 \hat{i} + 10 \hat{j} + 20 \hat{k}] \cdot [5 \hat{i} - 3 \hat{j} + 6 \hat{k}] W = [50 - 30 + 120] W = 140 W$

Stream:NEETSubject:PhysicsTopic:W.E.P.Subtopic:Power

⏱ 2mℹ️ Source: PYQ_2023

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