A rod with mass M and length L is rotated around an axis per…
A rod with mass M and length L is rotated around an axis perpendicular to the rod and L/3 from one of its ends, as shown. What is the moment of inertia of the rod for this axis of rotation? The moment of inertia perpendicular to a thin rod through its center of mass is Icm = .
Read DetailsOn a billiards table, the 13 ball collides elastically with…
On a billiards table, the 13 ball collides elastically with the equal mass 9 ball, which was initially at rest, as shown. After the collision, the 13 ball travels with speed 12.0 cm/s and the 9 ball travels with speed 3.00 cm/s in different directions. What was the initial speed of the 13 ball before the collision?
Read DetailsA train traveling at 17 m/s has ten cars with a total mass o…
A train traveling at 17 m/s has ten cars with a total mass of 1.36×106 kg. If you want to stop this train in 50 seconds along a straight track, what minimum constant force must you apply over that 50 seconds opposite the direction of its velocity?
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