2. (From an old exam) A toy train travels counterclockwise around a circular track of radius R. Taking the center of the circle as the origin, the position vector of the train as a function of time is F(t) = R Cos (wt)i + Rsin (wt)ĵ where is a constant. a) Find an expression for the train's velocity vector as a function of time. b) Find an expression for the train's speed at any given time. Simplify it as much as you can. (Recall that cos² 0 + sin² 0 = 1, for any 8.)
2. (From an old exam) A toy train travels counterclockwise around a circular track of radius R. Taking the center of the circle as the origin, the position vector of the train as a function of time is F(t) = R Cos (wt)i + Rsin (wt)ĵ where is a constant. a) Find an expression for the train's velocity vector as a function of time. b) Find an expression for the train's speed at any given time. Simplify it as much as you can. (Recall that cos² 0 + sin² 0 = 1, for any 8.)
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter3: Vectors And Two-Dimensional Motion
Section: Chapter Questions
Problem 60AP: Figure P3.60 illustrates the difference in proportions between the male (m) and female (f)...
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