Question

The maximam range of a bullet fired from a toy pistol mounted on a car at rest is R=40m. What will be the acute angle of inclination of the pistol for maximum range when car is moving in the direction of firing with uniform velocity v=20m/s, on the horizontal surface?​

Answer 1

Angle of inclination must be 67.5 degree.

Sorry, its difficult to type solution via mobile.

but answer is correct