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A 900- kg car collides with a 1200- kg car that was initially at rest at the origin of an x-y coordinate system. After the collision, the lighter car moves at 30.0 km/h in a direction of 25 o with respect to the positive x axis. The heavier car moves at 33 km/h at -50 o with respect to the positive x axis.
A. What was the initial speed of the lighter car (in km/h)?
B. What was the initial direction (as measured counterclockwise from the x-axis)?
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A small metal particle passes downward through a fluid medium while being subjected to the attraction of a magnetic field such that its position is observed to be s = (15t3 - 3t) mm, where t is measured in seconds. Determine (a) the particle's dis..
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