A car accelerates from rest at constant rate of `2ms^(-2)` for some time. Immediately after this, it retards at a constant rate of `4ms^(-2)` and comes to rest. The total time for which it remains in motion is 3 s. Taking the moment of start of motion as t = 0, answer the following questions. Let t be a time instant greater than `t_(1)` but less than 3 s. The velocity at this time instant isA. `4(t-t_(1))`B. `2t_(1)+4(t-t_(1))`C. `2t_(1)-4(t-t_(1))`D. `4t`

A car accelerates from rest at constant rate of `2ms^(-2)` for some ti

1.	A car accelerates from rest at constant rate of `2ms^(-2)` for some time. Immediately after this, it retards at a constant rate of `4ms^(-2)` and comes to rest. The total time for which it remains in motion is 3 s. Taking the moment of start of motion as t = 0, answer the following questions. Let t be a time instant greater than `t_(1)` but less than 3 s. The velocity at this time instant isA. `4(t-t_(1))`B. `2t_(1)+4(t-t_(1))`C. `2t_(1)-4(t-t_(1))`D. `4t`
Answer» Correct Answer - C

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