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Physics - Kinematics Question with Solution | TestHub

PhysicsKinematics1-DMedium2 minQB

PhysicsMediuminteger

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:

Initial velocity is regained when $Δ v = 0$ , i.e. the net area under the a-t graph is zero.

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

$(t - 4)^{2} = 16$

$\Rightarrow t - 4 = 4 \Rightarrow t = 8$ s.

Answer: 8

Subject:PhysicsTopic:KinematicsSubtopic:1-D

⏱ 2mℹ️ Source: QB

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