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# Answer to Question #17480 in Mechanics | Relativity for saif

Question #17480
Q2. The altitude of a rocket in the first half-minute of its ascent is given by x = bt2, where x is the altitude and b = 2.90 m/s2 is a constant.
a) Find a general expression for the rocket&rsquo;s velocity as a function of time.
b) Find the rocket&rsquo;s instantaneous velocity at t = 20 s.
c) Find an expression for the average velocity of the rocket. Find the average velocity after during the first 20 seconds.
d) Compare your two velocities (instantaneous and average). Is there a difference and if so why?
1
Expert's answer
2012-11-01T08:48:01-0400
The answer to the question is available in the PDF file https://www.assignmentexpert.com/homework-answers/physics-answer-17480.pdf

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