11. Momentum & Impulse

(I) The distance between a carbon atom (m = 12 u) and an oxygen atom (m = 16 u) in the CO molecule is 1.13 x 10⁻¹⁰ m . How far from the carbon atom is the center of mass of the molecule?

(I) The cm of an empty 1750-kg Jeep is 2.40 m behind the front of the Jeep. How far from the front of the Jeep will the cm be when two people sit in the front seat 2.80 m from the front of the Jeep, and three people sit in the back seat 3.90 m from the front? Assume that each person has a mass of 65.0 kg.

(II) A uniform thin wire is bent into a semicircle of radius R. Determine the coordinates of its center of mass with respect to an origin of coordinates at the center of the “full” circle.

(III) Determine the cm of a machine part that is a uniform cone of height h and radius R, Fig. 9–51. [Hint: Divide the cone into an infinite number of circular disks of thickness dz, one of which is shown.]

<IMAGE>