Saturday

December 20, 2014

December 20, 2014

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

- physics -
**drwls**, Wednesday, December 15, 2010 at 12:20pmWhen 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, ...

Dynamics - Fundamental Problem 15.12 The cannon and support without a projectile...

physics...plz help me - A cannon is pointed at a 60 degree angle relative to a ...

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, ...

Physics - 1) A particle travels between two parallel vertical walls separated by...

pysics - A projectile of mass 0.777 kg is shot from a cannon, at height 6.6 m, ...

Physics - A cannon fires a projectile into the air at an angle of 60degrees ...