Science:Math Exam Resources/Courses/MATH103/April 2009/Question 01 (e)

MATH103 April 2009
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Question 01 (e)

Multiple Choice question: Select ONE correct answer. You will not be graded for any work.

A charged molecule moves in a changing electric field which results in an acceleration of a(t) = cos(t) (in appropriate units). At time t = 0, the molecule is at rest at position x(0) = 1. What is the position x(t) when the molecule's velocity reaches the value -1 for the first time after time 0?

(a) -1

(b) 0

(c) 1

(d) 2

(e) The velocity never reaches -1

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