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Physics - Kinematics Question with Solution | TestHub

PhysicsKinematicsRelativeMedium3 minQB

PhysicsMediumnumerical

A dog at point $A$ always runs directly at its master $B$ with speed 5 m/s; the master walks in a straight line at 3 m/s. Initially their velocities are perpendicular and they are 8 m apart. The dog reaches the master in:

Answer:

2.50

Solution:

$T = \frac{v l}{v ^{2} - u ^{2}} = \frac{5 \times 8}{25 - 9} = \frac{40}{16} = 2.5 s$ .

Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:Relative

⏱ 3mℹ️ Source: QB

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