Solve the problem.Given the velocity and initial position of a body moving along a coordinate line at time t, find the body's position at time t.v = cos 
t, s(0) = 1
A. s = 2? sin 
t
B. s = sin t +1
C. s = 
sin 
t + ?
D. s = 
sin 
t +1
Answer: D
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After how many seconds does the object hit the ground?
A. 2.8 sec B. 11.3 sec C. 0.2 sec D. 5.6 sec
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B. y = -2 sin
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D. y = 2 sin