Posted by **mc** on Wednesday, December 15, 2010 at 11:25am.

A projectile fired vertically up from a cannon rises 200 m before returning to the ground. If the same cannon were to fire the same projectile at an angle 45 degrees, then the maximum range would be m.

- physics -
**drwls**, Wednesday, December 15, 2010 at 12:20pm
When fired straight up, the height attained is

H = V^2/(2g)

When fired at at angle A, the range is

R = (V^2/g)sin(2A)

When the angle is 45 degrees, R = V^2/g

and R = 2 H. (The H refers to the straight-up value)

Therefore the answer is 400 m.

## Answer This Question

## Related Questions

- physics - A projectile fired vertically up from a cannon rises 200 m before ...
- Physics - A projectile of mass 0.377 kg is shot from a cannon, at height 6.6 m, ...
- Physics - A projectile of mass 0.99 kg is shot from a cannon. The end of the ...
- Physics - A projectile of mass 0.998 kg is shot from a cannon. The end of the ...
- Dynamics - Fundamental Problem 15.12 The cannon and support without a projectile...
- Physics - A projectile of mass 0.413 kg is shot from a cannon, at height 6.8 m, ...
- Physics - 1) A particle travels between two parallel vertical walls separated by...
- Physics - A projectile of mass 0.46 kg is shot from a cannon, at height 6.8 m, ...
- Physics - A projectile of mass 0.46 kg is shot from a cannon, at height 6.8 m, ...
- Physics - A projectile of mass 0.46 kg is shot from a cannon, at height 6.8 m, ...

More Related Questions