Speed of a Declining Bullet Fired from a Pistol: Calculating Ratio

[autopower99]

what would be the speed of a bullet on decline fired from a pistol. firing angel is 45Deg. What would be the speed of bullet when it reaches 4 feet above from ground during its decline, i just need ratio of firing speed and speed before droping to ground.

 

[tiny-tim]

Welcome to PF!

what would be the speed of a bullet on decline fired from a pistol. firing angel is 45Deg. What would be the speed of bullet when it reaches 4 feet above from ground during its decline, i just need ratio of firing speed and speed before droping to ground.

Hi autopower99! Welcome to PF!

(I assume we're ignoring air resistance?)

The angle doesn't matter.

Just use conservation of energy … KE - mgh = constant.