Tuesday

September 30, 2014

September 30, 2014

Posted by **George** on Sunday, December 19, 2010 at 9:31am.

A launcher fires a projectile with a velocity of 6.31m/s. Determine the horizontal distance of the projectile (in the air) at 5 degrees. Recalculate this distance at 10, 15, 20.... (5 degree increments) up to 90 degrees (at which point the horizontal distance will be zero). Graph this data (Distance vs. Launch Angle). Distance will be on the Y-axis and launch angle will be on the X-axis.

- Physics -
**drwls**, Sunday, December 19, 2010 at 10:50amThe equation for range is

Distance = 2(V^2/g)sinX*cosX

= V^2/g sin(2X)

where X is the launch angle. In your case V^2/g is 4.05 m. The projectile won't go very far. 6.31 m/s is the speed of a slow runner.

You curve will be the half of a "sine wave.", with zeros at X=0 and X = 90 degrees and a maximum at X=45 degrees

- Physics -
**bobpursley**, Sunday, December 19, 2010 at 10:54amIt is the initial vertical velocity that determines how long it is in the air, and that determines how far it will go.

time in air:

initialverticalvelocity viv=6.31*sinTheta

hf=hi+viv*t-4.9t^2. Hf=hi=0, solve for timeinair t.

t=viv/4.9=6.31sinTheta/4.9

horizontal distance:

horizontal velocity vih=6.31cosTheta

distance=6.31cosTheta* t=

= 6.31^2 sinTheta*CosTheta /4.9

check all that.

**Answer this Question**

**Related Questions**

Physics - A launcher fires a projectile with a velocity of 6.31m/s. Determine ...

physics - an astronaut on the moon fires a projectile from a launcher on a level...

physics - An astronaut on the Moon fires a projectile from a launcher on a ...

physics - A projectile is fired with an initial speed of 65.2 m/s at an angle of...

Dynamics - A French artillerist, Captain A. Le Duc, developed an empirical ...

pyhsics - A 1kg projectile is fired at 10m/s from a 10kg launcher. The momenta ...

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

physics i really need help :( - A projectile is fired with an initial speed of ...

Physics - A projectile is shot horizontally at 30m/s from the roof of a building...

Physics - A projectile is shot horizontally at 30m/s from the roof of a building...