A scooter accelerates from rest for time $t_{1}$ at constant rate $a _{1}$ and then retards at constant rate $a _{2}$ for time $t _{2}$ and comes to rest. The correct value of $\frac{t_{1}}{t_{2}}$ will be ..... .
- [JEE MAIN 2021]
- A$\frac{a_{1}+a_{2}}{a_{2}}$
- B$\frac{ a _{2}}{ a _{1}}$
- C$\frac{ a _{1}}{ a _{2}}$
- D$\frac{a_{1}+a_{2}}{a_{1}}$
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- [AIPMT 1993]
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