APFIVE Conservation of Momentum with Astronauts
Two astronauts, with masses of 70 kg and 90 kg, are initially at rest relative to their spacecraft. The 70 kg astronaut pushes off the 90 kg astronaut, causing the 70 kg astronaut to move away at 0.5 m/s. What is the resulting velocity of the 90 kg astronaut?
A
0.64 m/s in the direction opposite to the 70 kg astronaut
B
0.5 m/s in the direction opposite to the 70 kg astronaut
C
0.39 m/s in the same direction as the 70 kg astronaut
D
0.39 m/s in the direction opposite to the 70 kg astronaut
Question Leaderboard
| Rank | |||||
|---|---|---|---|---|---|
| #1 | sophia.lee8439 | 1 | 1 | 0m 00s | 100 |
| #2 | alicelin104061 | 1 | 1 | 0m 39s | 61 |
| #3 | kievezhao | 1 | 1 | 0m 51s | 49 |
| #4 | fsfa.alsharif | 1 | 1 | 1m 55s | -15 |
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