Position of an ant (S in metres) moving in the Y-Z plane is given… | JEE Main 2024 Physics PYQ

MCQEasyJEE Main 2024 · 27 January, Shift 1Velocity & Acceleration

Position of an ant ( $S$ in metres) moving in the $Y-Z$ plane is given by $S = 2t^2 \hat{j} + 5 \hat{k}$ (where $t$ is in seconds). The magnitude and direction of velocity of the ant at $t = 1 \, \text{s}$ will be:

A
$16 \, \text{m/s}$ in $y$ -direction
B
$4 \, \text{m/s}$ in $x$ -direction
C
$9 \, \text{m/s}$ in $z$ -direction
D
$4 \, \text{m/s}$ in $y$ -direction

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