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1. |
A particle is moving in a straight line is at a distance x from a fixed point in the straight line at time t seconds, where x = 2t3 12t + 11. What is the average acceleration of the particle at the end of 3 seconds? |
A. | 28 cm/sec<sup>2</sup> |
B. | 30 cm/sec<sup>2</sup> |
C. | 32 cm/sec<sup>2</sup> |
D. | 26 cm/sec<sup>2</sup> |
Answer» C. 32 cm/sec<sup>2</sup> | |