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Physics · Motion in one Dimension

JEE Main 2024 — 4 April, Shift 1 — Question 40

A wooden block, initially at rest on the ground, is pushed by a force which increases linearly with time tt. Which of the following curve best describes acceleration of the block with time :

  1. Option A:
    Option A figure
  2. Option B:
    Option B figure
    Correct
  3. Option C:
    Option C figure
  4. Option D:
    Option D figure

Answer: B

Step-by-step solution

As given, F∝t  ⟹  F=ktF \propto t \implies F = kt.

because  F=ma  ⟹  a=Fm=ktmbecause \;F = ma \implies a = \frac{F}{m} = \frac{kt}{m}

  ⟹  a∝t\implies a \propto t

i.e. aa vs tt graph will be a straight line passing through centre.

Answer key and solution verified before publishing.

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Exam
JEE Main 2024
Paper
4 April, Shift 1
Subject
Physics
Chapter
Motion in one Dimension
Topic
Non-Uniformly Accelerated Motion

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A wooden block, initially at rest on the ground, is pushed by a force… | JEE Main 2024 PYQ with Solution · DhiX AI