defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Differential Calculus Applications of Derivatives
If s = t3 - 4t2 + 5 describes the motion of a particle, then its velocity (in unit/sec) when the acceleration vanishes, is
1
\(\frac{ 16 }{ 9 }\)
2
\(-\frac{ 32 }{ 3 }\)
3
\(\frac{ 4 }{ 3 }\)
4
\(\frac{ -16 }{ 3 }\)