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Physics - Kinematics Question with Solution | TestHub

PhysicsKinematics1-DEasy2 minQB

PhysicsEasysingle choice

The acceleration-time graph of a particle moving along a straight line is shown in figure. At what time (in sec) the particle acquires its initial velocity?

Answer:

Solution:

When, $v_{f} = v_{i} \Rightarrow Δ v = 0$

so area under a $v_{s} t$ graph is zero

$\frac{1}{2} \times 4 \times 10 = \frac{1}{2} \times \frac{10}{4} (t - 4)^{2} t - 4 = 4 t = 8 sec$

Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:1-D

⏱ 2mℹ️ Source: QB

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