Saturday

October 25, 2014

October 25, 2014

Posted by **Mesho** on Wednesday, April 6, 2011 at 12:46pm.

(a) Number ..... Units ....

(b) Number ..... Units ....

Answer *1: the tolerance is +/-1 in the 3rd significant digit

Answer *2: the tolerance is +/-1 in the 3rd significant digit

- physics -
**drwls**, Wednesday, April 6, 2011 at 1:03pmWith no air friction, it should rise to an altitude H such that

M g H = (1/2) M Vo^2

H = Vo^2/(2g) = 42.9 m

If it rises to only 7.70 m, 82.05% of the initial kinetic energy is lost due to air friction. That is a lot.

The average friction force is energy lost (in Joules) divided by 7.70 meters

**Answer this Question**

**Related Questions**

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 1.450 kg is shot straight up with an initial ...

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 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 ...

Calculus - A ball is shot straight up into the air with initial velocity of 47 ...

math - A ball is shot straight up into the air with initial velocity of 45 ft/...