Solve the problem.A projectile is fired with an initial velocity of 550 feet per second at an angle of 70° with the horizontal. In how many seconds will the projectile reach its maximum altitude? (Round your answer to the nearest tenth of a second.) The parametric equations for the path of the projectile are x = (550 cos 70°)t, and y = (550 sin 70°)t - 16t2.
A. 12.8 seconds
B. 16.2 seconds
C. 24.3 seconds
D. 21 seconds
Answer: B
Mathematics
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