Physics
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A block is on a merry-go-round. Its position is given by (x, y, z) = (3.0, 4.0, 5.0)m, and its velocity can be expressed as (-4.0, +3.2, -3.8)m/s. If the mass of the block is 5.2 kg determine its angular momentum with respect to the origin.
An observer is at point o. A car of mass m traveling at a constant velocity u is about to pass by her from the left as shown in the figure. Treating the car as a particle, determine the angular momentum of the car about the point o.
A pedestrian is in the middle of the road, standing still at point o. A bus of mass m is approaching him with a constant velocity u, as shown in the figure below. Considering the bus as a particle, find the angular momentum of it about the point o.