Which quantities are conserved in the following problem. (circle the conserved q

Question

Which quantities are conserved in the following problem. (circle the conserved quantities). a box of mass 2cm slides the ground which is frictionless and collides with a box of man m. after the collision the two boxes sick together and move off together at some other speed. Kinetic Energy Mechanical Energy Total Energy Momentum Speed Mark on each diagram (1 through 5) where the approximate center of mass is. all lines represent wires of constant mass density. a block of mass M rests on a board which sits on a as shown in the figure. Indicate approximately where on hoard would you place a block of mass 3/4M to make it balance. Rank the following objects by their moments of interia, 1 for the smallest and 4 for the highest (all objects have total mass M and the same radius R). On the diagrams below draw the direction in which the objects are accelerating. (Enter 0 if it is not accelerating). Indicate on the diagram below the direction of the angular velocity vector for the merry-go-round, if rotating as shown (counterclockwise as viewed from above). The merry go round slows to a stop from some initial angular velocity. Indicate on the diagram below in which direction the angular acceleration vector points.

Explanation / Answer

1)4 2)all correct 3)at 4/3 *l position 4)right to left decreasing 5)acceleration towards centre 6)towards left at 1 0 at 2 and right at 3

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