Physics!!!?

[mrs smith]

A golf ball is struck at ground level. The speed of the golf ball as a function of time, where t = 0 at the instant the ball is struck. The graph is marked in increments of 0.90 s along the time axis, and vmin = 18.06 m/s and vmax = 47.65 m/s. Graph is a parabola.

How far does the golf ball travel horizontally before returning to ground level?

What is the maximum height above the ground level attained by the ball?

[odu83]

The horizontal speed is vx=18.06 and the vertical speed is
vy=sqrt(47.65^2-18.06^2)

The angle of launch is ?=atan(vy/vx)

a) Range=47.65^2*2*sin?*cos?/g

b) max height is
h=vy^2/(2*g)

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