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Physics - Kinematics Question with Solution | TestHub

PhysicsKinematics1-DMedium2 minQB

PhysicsMediumsingle choice

The greatest acceleration or deceleration that a train may have is $a$ . The minimum time in which the train can get from one station to the next at a distance $s$ is:

Options:

Answer:

Solution:

The minimum time strategy is to accelerate for half the distance and decelerate for the other half: $\frac{s}{2} = \frac{1}{2} a (\frac{t}{2})^{2}$ , giving $t = 2 s / a$ . Option D.

Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:1-D

⏱ 2mℹ️ Source: QB

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