If a projectile (such as a bullet) is fired into the air with an initial velocity v at an angle of elevation ? (see the figure), then the height h of the projectile at time t is given by
?
h = -16t2 + vtsin ?
?
?
Give the equation for the height, if v is 1,600 feet per second and ? is 30°. (Leave your answer in exact value form.)
?
A. 
B. 
C. 
D. 
E. 
Answer: B
Mathematics
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A. Undefined
B. 0
C. 
D. 
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