Tuesday

September 30, 2014

September 30, 2014

Posted by **joshua** on Tuesday, October 26, 2010 at 10:49am.

(a) How high would it go if there were no air friction?

(b) If the projectile rises to a maximum height of only 13.9 m, determine the magnitude of the average force due to air resistance.

- physics -
**bobpursley**, Tuesday, October 26, 2010 at 11:20amThe initial KEnergy is 1/2 m v^2

The PEnergy at to top must be equal to the initial KEnergy.

mgh=1/2 mv^2 solve for h. Notice m divides out.

b) forceresistance*13.9=1/2 m v^2

solve for the force.

- physics -
**B**, Friday, November 5, 2010 at 7:35pma) 20.4085

b) 20.8633

**Answer this Question**

**Related Questions**

Physics - A projectile mass of 0.500 kg is shot straight up with an initial ...

physics - A projectile of mass 0.550 kg is shot straight up with an initial ...

Physics - A projectile of mass 0.800 kg is shot straight up with an initial ...

physics - A projectile of mass 0.817 kg is shot straight up with an initial ...

physics - A projectile of mass 0.840 kg is shot straight up with an initial ...

Physics - A projectile of mass 1.350 kg is shot straight up with an initial ...

Science - A projectile of mass 0.650 kg is shot straight up with an initial ...

physics - A projectile of mass 0.874 kg is shot straight up with an initial ...

physics - A projectile with mass of 139 kg is launched straight up from the ...

Physics - A projectile is launched with an initial speed of 40m/s at an angle of...