A particle moves along a straight line through the origin. At time t, the displacement,s, of the particle from the origin is given by
s = (5t^2) + 3cos4t
Find the velocity of the particle at time t
velocity
2011-07-23 6:39 am
回答 (1)
2011-07-23 8:10 am
✔ 最佳答案
Velocity v = ds/dthence, v = d[5t^2 + 3cos(4t)]/dt = 10t - 12.sin(4t)
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110722000051KK01183