1.

A particle moves along the X-axis as `x=u(t-2s)=at(t-2)^2`.A. The initial velocity of the particle is uB. The acceleration of the particle is aC. The acceleration of the particle is 2aD. At `t=2s` particle is at the origin

Answer» Correct Answer - C::D
`x=u(t-2)+a(t-2)^(2)`…(i)
`v=(dx)/(dt)=u+2a(t-2)`
Therefore `v(0)=u-4a`
`a=(d^(2)x)/(dt^(2))=2a" "` Hence [C]
`x(2)=0`[From (i)]. Hence [D]


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