Posted by **yanxin** on Saturday, September 3, 2011 at 1:48am.

The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s = 4 sin ¦Ðt + 3 cos ¦Ðt, where t is measured in seconds.

(a)Find the average velocity during each time period.

(i) [1, 2]

(ii) [1, 1.1]

(iii) [1, 1.01]

(iv) [1, 1.001]

(b) Estimate the instantaneous velocity of the particle when t = 1.

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