I need help with this Matlab problem Please

If the equation modeling the vertical distance traveled by a projectile as a function of time is

then, from calculus, the velocity in the vertical direction is

Create a vector t from 0 to 20 s, and calculate both the vertical position and the velocity in the vertical direction, assuming a launch angle of radians and an initial velocity of 100 m/s. Plot both quantities on the same graph with separate y-axes. Be sure to label both y-axes. Use g = 9.8 m/s2. The velocity should be zero at the point where the projectile is the highest in the vertical direction. Does your graph support this position?

Hint: Need to use a=plotyy to label both y-axis.