JEE Main 2021 · PhysicsMultiple choiceSingle correctMediumApplication

JEE Main 3 August 2021, Shift 1, Physics Q4

Question 4 of 90 in this shift, Physics question 4 of 30, Section A.

A constant power is fed to an object, starting from rest, moving along a straight line. The distance travelled by the body in time

t

is proportional to -

(1) $t^{7/2}$
(2) $t^{5/2}$
(3) $t^{3/2}$ Official answer
(4) $t^{1/2}$

Official answer

Option 3

NTA final key.

Chapter: Work, Energy and Power
Topic: Power
Idea tested: Kinematics of Constant Power

Same idea in other shifts

Asked 4× in all

5 Apr 2024, Shift 2 · Q35A body is moving unidirectionally under the influence of a constant power source. Its displacement in time t is proportional to :MediumSingle correct
18 Mar 2021, Shift 1 · Q2A constant power delivering machine has towed a box, which was initially at rest, along a horizontal straight line. The distance moved by…EasySingle correct
3 Sep 2020, Shift 2 · Q2A particle is moving unidirectionally on a horizontal plane under the action of a constant power supplying energy source. The displacement…MediumDiagram basedHas a figure

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.