A particle starts from height... |JEE Main 2022| Rectilinear

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JEE MAIN 2022

28-07-2022 S2

Question

At time $t=0$ a particle starts travelling from a height $7 \hat{z} \mathrm{~cm}$ in a plane keeping z coordinate constant. At any instant of time it's position along the $x$ and $y$ directions are defined as $3 t$ and $5 t^3$ respectively. At $t=1 s$ acceleration of the particle will be

Select the correct option:

A

–30 y

B

30 y

C

3x + 15 y

D

$3 x+15 y+7 \hat{z}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

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