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The position x of a particle with respect to time t along x-axis is given by x = 9t² – t³ where x is in metres and t in second. What will be the position of this particle when it achieves maximum speed along the +ve x direction?
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- 54 m
- 81 m
- 24 m
- 32 m
Correct Option: A
| Speed v = | = | (9t² - t³) = 18t – 3t² | ||
| dt | dt |
