Motion in A Straight Line

Question: A body is moving according to the equation \[x = at + b{t^2} - c{t^3}\] where \[x = \] displacement and \[a,\;b\] and \[c\] are constants. The acceleration of the body is



1) \[a + 2bt\]
2) \[2b + 6ct\]
3) \[2b - 6ct\]
4) \[3b - 6c{t^2}\]
Solution: Explanation: Explanation
non-uniform-motion

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