(16) A 3.0-kg particle has a position vector given by F = (2.02 +3.01) where I is in meters and this in seconds. What is the angular momentum of the particle, in kg-m²/s, about the origin at t = 2 s? a. 72k b. -72k c. 24k d. -24k e. 22k

2. A mass is moving on xy plane as shown in the Figure. Find the angular momentum of the mass about the origin. y (0, 70) (- 50, 0) (0,0) v = 100 m/s m = 2 kg

8. The image below depicts a street light standard that has been blown off of vertical by high winds during storm. A force of 1000N is being applied to the standard in order to "upright" the standard. Determine the magnitude and sense of the Moment about point A at the instant depicted. N-m. Be sure to include whether the Moment is Moment = Positive or Negative for this 2D problem. B 6 m 75° 3 m

2. A thin square plate of mass m rotates on a smooth surface with an angular velocity of æn about its mass center. The hook then strikes the peg at P and the plate starts to rotate about point P with no rebound. What is the plate's angular velocity after impact, and the speed vg of the mass center of the plate?