The displacement-time graph for two particles A and B consists of straight lines inclined at angles of 3 0 ∘ and 6 0 ∘ with the time axis. The ratio of the velocities v A : v B is:

The slope of a displacement-time graph gives the velocity: v A = tan 3 0 ∘ = 3 1 and v B = tan 6 0 ∘ = 3 , so v A : v B = 1 : 3 . Option D.

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Physics - Kinematics Question with Solution | TestHub

PhysicsKinematicsMiscellaneousMedium2 minQB

PhysicsMediumsingle choice

The displacement-time graph for two particles $A$ and $B$ consists of straight lines inclined at angles of $3 0^{\circ}$ and $6 0^{\circ}$ with the time axis. The ratio of the velocities $v_{A} : v_{B}$ is:

Options:

Answer:

Solution:

The slope of a displacement-time graph gives the velocity: $v_{A} = tan 3 0^{\circ} = \frac{1}{3}$ and $v_{B} = tan 6 0^{\circ} = 3$ , so $v_{A} : v_{B} = 1 : 3$ . Option D.

Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: QB

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