Find the muzzle speed of a gun whose maximum range is 24.5 km.
R = V02sin2angle/g
The Attempt at a Solution
How do I find the angle?
Also can you check what I did wrong in this one?
A projectile is fired at a speed of 840 /sec at an angle of 60 degree. How long will it take to get 21 km downrange?
change in X = V1t
21,000/840 = t
But the right answer is 50 s