Physics · 2021
JEE Main · 17 March 2021, Shift 1 · Q1
A car accelerates from rest at a constant rate α for some time after which it decelerates at a constant rate β to come to rest. If the total time…
A car accelerates from rest at a constant rate $\displaystyle \alpha$ for some time after which it decelerates at a constant rate $\displaystyle \beta$ to come to rest. If the total time elapsed is t seconds, the total distance travelled is :
Official answer
(2)
$\displaystyle \frac{\alpha \beta}{2(\alpha+\beta)} t^2$
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.