JEE Main 2023PhysicsLaws Of MotionFriction ForcemediumMCQ

JEE Main 2023 — Laws Of Motion Question with Solution

From: JEE Main 2023 (Online) 29th January Evening Shift

Question

The time taken by an object to slide down 45 rough inclined plane is n times as it takes to slide down a perfectly smooth 45 incline plane. The coefficient of kinetic friction between the object and the incline plane is :

Choose an option

Show full solutionCorrect option: A
Correct answer
A

Step-by-step explanation

JEE Main 2023 (Online) 29th January Evening Shift Physics - Laws of Motion Question 41 English Explanation

Smooth case:

..... (1)

Rough case:

..... (2)

From (1) to (2) and we have

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Laws Of Motion chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2023, covering the Laws Of Motion chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.