Posted by **pleh** on Thursday, January 26, 2012 at 12:10am.

An object moves along the x-axis, according to x= (pi/2)t + sin(pi t).

a) What is the largest velocity such an object attains?

b) Identify one interval on which the object is accelerating in a positive direction. Explain your reasoning.

c) Name one part of that interval for which the object is speeding up, and explain why you know.

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