# A point P moves in counter-clockwise direction on a circular path as shown in the figure. The movement of ‘P’ is such that it sweeps out a length $s=t^{3}+5$, where $\mathrm{s}$ is in metres and $t$ is in seconds. The radius of the path is $20 \mathrm{~m}$. The acceleration of ‘P’ when $t=2$ s is nearly.

Question:

A point P moves in counter-clockwise direction on a circular path as shown in the figure. The movement of ‘P’ is such that it sweeps out a length $s=t^{3}+5$, where $\mathrm{s}$ is in metres and $t$ is in seconds. The radius of the path is $20 \mathrm{~m}$. The acceleration of ‘P’ when $t=2$ s is nearly.

1. $13 \mathrm{~m} / \mathrm{s}^{2}$

2. $12 \mathrm{~m} / \mathrm{s}^{2}$

3. $7.2 \mathrm{~ms}^{2}$

4. $14 \mathrm{~m} / \mathrm{s}^{2}$

JEE Main Previous Year Single Correct Question of JEE Main from Physics Laws of Motion chapter.

JEE Main Previous Year 2010

Correct Option: 4

Solution:

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