A particle is moving along x- axis and acceleration is given by a = (4 – 2t). Here t is in seconds and a in m/s2. At t = 0, x = 0 and v = 0.
(i) Particle comes to rest after a time –
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Ans.
(i)
Sol. 4s
(ii)
Sol. Parabola passing through origin
(iii)
Sol. 
m
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