Using the kinematic equation:
vfy = 0, v0y = v0 sin θ, and a = -g
a) Find the time that it takes the projectile to reach its maximum height H. Express the answer in terms of v0, theta, and g (the magnitude of the acceleration due to gravity).
b) Find tR, the time at which the projectile hits the ground after having traveled through a horizontal distance R. Express the time in terms of v0, theta, and g.
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