Question

The following picture shows a golf ball being hit and given an initial velocity of v0. The ball is hit at an unknown angle above the ground. What are TWO values that are known, even in the absence of all other numbers?

Answer 1

Answer:

The two values that are known is initial velocity and the Range. From this we can find out all the other values.

range R is

$R=\frac{v_0^2\sin2\theta}{g}$

From the above we can get the angle of projection θ

The maximum height can be found by

$H=\frac{v_0^2\sin^2\tehta}{g}$

The total time of flight T can be calculated by

$T=v_0\cos\theta\times g$

Hope this helps.