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A uniform electric field of strength exists in a region. An electron (charge , mass ) enters at point perpendicular to the electric field with velocity . It moves through the electric field and exits at point as shown then:

(a)
(b)Rate of work done by the electric field at B is
(c)Rate of work by the electric field at is zero
(d)Velocity at B is

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Important Questions on Kinematics
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A particle starts from origin from rest and moves with a uniform acceleration along the positive . Identify all figures that correctly represent the motion qualitatively.
( acceleration, velocity, dispalcement, time)

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