Posted by **KC** on Monday, November 1, 2010 at 7:36pm.

Fireworks are fired at an angle of 82degrees with the horizontal. They are expected to explode about 100 m in the air, 4.8 secs after they are fired. What is the initial velocity of a shell fired from ground level.

I think I have to find the vertical and horizontal components first but I don't know where to go after I do so. Thanks for any help.

- Math -
**yo**, Saturday, May 14, 2011 at 2:01pm
use physics

- Math -
**Anonymous**, Wednesday, July 17, 2013 at 12:01pm
9'1

## Answer this Question

## Related Questions

- math - projectiles what is the formula? Question A firework company is designing...
- Quantative Reasoning College Freshman - Using the formula y=-16t^2+vt+h help me ...
- physics - A projectile is fired from the ground level with initial velocity of ...
- physics - A projectile is fired from the ground level with initial velocity of ...
- Physics - A projectile is fired at an angle of 60degree with the horizontal and ...
- physics HELP - A projectile is fired with an initial speed of 1000 m/s at an ...
- Math - Trig - A projectile is fired with an initial velocity of 88 ft/sec at an ...
- physics - a projectile is fired at an angle of 60 degrees with the horizontal ...
- Physics - A pistol that fires a signal flare gives the flare an initial speed (...
- Physics - A projectile is fired at 65.0° above the horizontal. Its initial speed...