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Physics - Kinematics Question with Solution | TestHub

PhysicsKinematics1-DHard2 minQB

PhysicsHardsingle choice

A body starts from rest and moves for $n$ seconds with uniform acceleration $a$ ; its velocity after $n$ seconds is $v$ . The displacement of the body in the last $2$ seconds is:

Options:

Answer:

Solution:

With $a = \frac{v}{n}$ : $s = \frac{1}{2} a (4 n - 4) = \frac{1}{2} \cdot \frac{v}{n} (4 n - 4) = \frac{2 v ( n - 1 )}{n}$ . Option B.

Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:1-D

⏱ 2mℹ️ Source: QB

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