Physics, 13.06.2021 14:00 josephmcintosh3137
2.
A rock, mass 4 kg, and a 1 kg stone fall freely from rest from a height of
100 m. After they fall for 2 seconds, the ratio of the rock's speed to the
stone's speed is
Answers: 2
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Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.
Answers: 1
2.
A rock, mass 4 kg, and a 1 kg stone fall freely from rest from a height of
100 m. After th...
100 m. After th...
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