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January 26, 2015

January 26, 2015

Posted by **Sarah** on Tuesday, September 23, 2008 at 8:40pm.

(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.

Can someone please help me with this question, the trig functions have me confused. Please and thanks again.

- trig -
**bobpursley**, Tuesday, September 23, 2008 at 8:43pmPUt in the times given, first the final time,then calculate position, then put in the initial time, and calculate position.

avg velocity=(finalposition-initialposition)/timeduration

- trig -
**Sarah**, Tuesday, September 23, 2008 at 9:00pmbut how do we treat the cos and sin...just input them like that into the calculator or use radians?

- trig -
**Sarah**, Tuesday, September 23, 2008 at 9:23pmand also for (b) is the answer -2pi

- trig -
**Sarah**, Tuesday, September 23, 2008 at 10:03pmi got -3 for all part a can anyone verify that answer please

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