Physics - Kinematics Question with Solution | TestHub

PhysicsKinematicsRelativeMedium2 minQB

PhysicsMediuminteger

Passage / Comprehension

Ram and Shyam are walking on two perpendicular tracks with speed $3 m s^{- 1}$ and $4 m s^{- 1}$ respectively. At a certain moment (say t = 0 sec) Ram and Shyam are at 20 m and 40 m away from the intersection of tracks respectively and moving towards the intersection of the tracks.

During the motion the magnitude of velocity of Ram with respect to Shyam, is _____ $m s^{- 1}$ .

Answer:

Solution:

Velocities are perpendicular: $v_{R} = 3 \hat{i}$ , $v_{S} = 4 \hat{j}$ .

$∣ v_{R / S} ∣ = 3^{2} + 4^{2} = 5 m/s$ . Answer: 5.

Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:Relative

⏱ 2mℹ️ Source: QB

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