The velocity of a projectile at the initial point A is 2 i ^ - 3 j ^ m s - 1 . Its velocity (in m s - 1 ) at point B is

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PhysicsKinematics2-D & 3DEasy2 minPYQ_2017

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The velocity of a projectile at the initial point $A$ is $(2 \hat{i} - 3 \hat{j}) m s^{- 1}$ . Its velocity (in $m s^{- 1}$ ) at point $B$ is

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Solution:

From the figure, the $X$ -component remains unchanged while the $Y$ -component is reverse. Then, the velocity at point $B$ is $(2 \hat{i} + 3 \hat{j}) m s^{- 1}$ .

Stream:BITSATSubject:PhysicsTopic:KinematicsSubtopic:2-D & 3D

⏱ 2mℹ️ Source: PYQ_2017

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