Question

A ball is fired from the ground with an initial speed of 1.36 103 m/s (approximately four times the speed of sound) at an initial angle of 49.0° to the horizontal. Neglect air resistance.

Answer 1

You have neglected to say what quantity you want to be computed. The horizontal distance that it travels?

That would be (Vo^2/g)*sin98 = 18690 m
(18.69 km)

Answer 2

swag