A point moves along the x-axis, and its x-coordinate after
Chapter 4, Problem 20(choose chapter or problem)
A point moves along the x-axis, and its x-coordinate after t sec is x 4t 10. (Assume that x is in centimeters.) (a) What is the velocity? (b) What is the x-coordinate when t 2 sec? (c) Use your answers in parts (a) and (b) to find the x-coordinate when t 3 sec. Hint: What are the units of the velocity in part (a)? Check your answer by letting t 3 in the given equation. 2
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