MCQ
The relation between time and distance is $t=\alpha x^2+\beta x$, where $\alpha$ and $\beta$ are constants. The retardation is
- ✓$2 \alpha v^3$
- B$2 \beta v^3$
- C$2 \alpha \beta v^3$
- D$2 \beta^2 v^3$
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