Please someone help yikes!
Assuming there is no resistance and knowing that a(t)= -9.8 m/s^2
Determine the maximum height and range of a projectile fired at a height of 1.5 meters above the ground with an initial velocity of a 100 meters per second and at an angle of 30 degrees above the horizontal.
Answers in back of book:
maximum height: 129.1 meters
range: 886.3 meters
(how do you go about solving this problem using Vector-Valued Functions such as r(t)= x(t)i + y(t)j etc. )