## Kumar Ketan is teaching live on Unacademy Plus

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18.2k views unacademy Kumar Ketan Educator since January 2018 #6 years teaching experience #IIT JEE Physics #YouTuber (140k+ subs) #Unacademy educator(16k+ lifetimeviews) #Under graduate topper Follow me on the Unacademy Learning App 1k Followers Following Courses Get updates about new courses Watch all my lessons .Download slides and watch offline All courses HINDI Relative Motion (Hindi) Kinematics: Relative Motion Rain Drop and Boat River Proble.. 5.0 (5 ratings) Kumar Ketan Kumar Ketan

CRAs4 Physics course for IIT JEE Kinematics & Dynamics 1D Non-Accelerated Motion 1D Accelerated Motion Force Frictional Force Newton's Law of Motion Relative Motion

Steps to find the relative velocity Let the object be moving with velocity V1 andthe observer be moving with velocity v2. To find the relative velocity of object with respect to observer follow the following steps-

(i) Reverse the velocity of the observer. (ii) Superimpose the velocity of object upon reverse velocity of observer. So we obtain Vr V1-V2 (iii) Resultant velocity will be the relative velocity That is

Two particles start from rest simultaneously and are equally accelerated. Throughout the motion, the relative velocity of one with respect to other is: (A)zero (B) non zero and directed parallel-to acceleration (C) non zero and directed opposite to acceleration (D) directed perpendicular to the acceleration

They will have the same velocity at all t instants and hence their relative velocity is zero

Two particles are moving with velocities v1 and v2 Their relative velocity is the maximum, when th angle between their velocities is: (A)Zero (B)n/4 (C)T/2 (D)

When the particles, move in opposite directions, relative velocity is Vi+ V2

Two particles P1 and P2 are moving with velocities v and v2 respectively. Which of the statement about the relative velocity Vr12 is true? (A)Vr12 cannot be greater than vi+V2 (B) Vr12 cannot be greater than vr-V2 (C) Vr12 > (Vi + V2) r12

The relative velocity of a particle moving with a velocity v, with respect to itself is: (A)Zero (C) -v (B) v (D) none of the above