Question

15. The acceleration of a particle which moves along the
positive X-axis varies with its position as shown. If the
velocity of the particle is 0.8 m/s at x = 0, the velocity
of the particle at x = 1.4 is (in m/s)​

Answer 1

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The acceleration of a particle which moves along the positive x-axis varies with its position as shown in figure. If the velocity of the particle is 0.8ms-1 at x = 0, then velocity of the particle at x=1.4m is (∈ms-1). ⇒v2=(0.8)2=2(0.4)⇒v=1.2ms-1 .