Solve.The motion of a projectile that is fired at a 60° angle with the horizontal is given by x = 
t, 
for t in 
Suppose a projectile is fired with an initial velocity of 400 feet per second at an angle of 60° with the horizontal. Find (a) the time when it strikes the ground and (b) the range (horizontal distance covered).
A. (a) 12.5 seconds
(b) 4330 feet
B. (a) 21.7 seconds
(b) 4330 feet
C. (a) 6.3 seconds
(b) 625 feet
D. (a) 10.8 seconds
(b) 5625 feet
Answer: B
Mathematics
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