# A projectile is shot from the ground at a velocity of 14 m/s at an angle of pi/4. How long will it take for the projectile to land?

see first of all its 2d question so every formula is same but the angle comes in the picture . if throw it at an angle $\frac{\pi}{4}$ it will go farthest . the formula which i applied is $t = \left(2 v \sin \frac{\pi}{4}\right) g$ angle can be different according to the question you can also derive this equation from 1d projectile formula by taking components