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Mathematics · 2026 · 1 mark
CBSE 2026 · Region 4 · Set 2 · Q6
If the distance travelled by a particle in t seconds is given by S =72 t +3 t^2- t^3, then time taken by the particle to come to rest is:
If the distance travelled by a particle in t seconds is given by $\displaystyle \mathrm{S}=72 \mathrm{t}+3 \mathrm{t}^{2}-\mathrm{t}^{3}$, then time taken by the particle to come to rest is :
Official answer
(B)
$\displaystyle 6$ seconds
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