Q- A bullet with a mass of 45 g is fired upward through a hole in a table into a block of wood with a mass of 5.2 kg. The bullet lodges in the block and the two rise to a height of 3.1 m above the table.
1. Calculate the potential energy of the block above the table.
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. : "collision"
Momentum-Energy
Collision-Relative motion
Q- A cart (m1 = 120 kg) is moving to the right along a track at v1i = 15 m/s when it hits a stationary cart (m2 = 360 kg) and rebounds with a speed of v1f = 7 m/s in the opposite direction.
- With what speed does the 360 kg cart move after the collision?
- An observer moves in the same direction…
2 .
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