Calculate Flight Time of Artillery Shell

[sul6an]

Homework Statement

An artillery shell is fired at an angle of 25.3 above the horizontal ground with an initial speed of 1890 m/s. The acceleration of gravity is 9:8 m/s2 : Find the total time of fight of the shell, neglecting air resistance. Answer in units of min.

Homework Equations

The Attempt at a Solution

 

[tiny-tim]

Welcome to PF!

Hi sul6an! Welcome to PF!

(erm … what's "kicking ball" got to do with it?! )

Show us what you've tried so far, and then we'll know how to help you!

 

[sul6an]

Nothing about kicking ball. I wrote it by mistake, sorry :?

I don't know how to start it :(

 

[Kurdt]

Nothing about kicking ball. I wrote it by mistake, sorry :?

I don't know how to start it :(

Surely this question is related to some subject you've been studying. That should give you a clue about where to start.

 

[tiny-tim]

I don't know how to start it :(

Do you know how to do it if it is 90º (vertically upward) instead of 25.3º?