passes through the center of the molecule, perpendicular to its length. The mass

ID: 1670306 • Letter: P

Question

passes through the center of the molecule, perpendicular to its length. The mass of each

oxygen atom is 2.66 x 10

the two atoms is

the moment of inertia of the molecule about the z axis. b) If the angular speed of the

molecule about the

Answer: a) 1.95 x 10

of the wheel is 2.00 rad/s at

free to rotate about the pivot in the vertical plane, as shown in Figure below. The rod is

released from rest in the horizontal position. a) What is the initial angular acceleration of

the rod and b) the initial linear acceleration of its right end? Answer: a)

Answer: a)

1 ;

Linear speed of the lowest point = 3

(Hint, use mechanical energy conservation)

1. K = 1/2*I*^2 Here I = 2*(2.66x10^-26*(1.21x10^-10/2)^2 = 1.95x10^-46kg-m^2 So K = 1/2* 1.95x10^-46kg-m^2*(4.60x10^12)^2 = 2.06x10^-21J

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