Given that an object is at position s (t ) = 4t + 2sin(t) at any time t , find each of the following.
a) v (t ) .
b) a(t ) .
c) The position, velocity and acceleration when t = 5?/6 .
(a) 4 + 2cos t ;
(b) ?2sin t
(c) 
Mathematics
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? 
A. 
B. 
C. 
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