Answer:
Explanation:
u = 150 m/s
R = 800 m
The formula for the horizontal range is
[tex]R=\frac{u^{2}Sin2\theta }{g}[/tex]
where, θ is angle of projection.
[tex]800=\frac{150^{2}Sin2\theta }{9.8}[/tex]
Sin2θ = 0.348
2θ = 20.4°
θ = 10.2°
The range is same for the complementary angles.
So, the other angle is 90 - 10.2 = 79.8°
