5. Conservation of Momentum Explosion

5. Conservation of Momentum Explosion

Multiple Choice

Two astronauts orbiting around Earth, holding on to each other, getting ready to push off each other. What is their total momentum at that point?

•  $0\ kg\cdot\frac{m}{s}$  

• No way to determine
  

Multiple Choice

Two astronauts orbiting around Earth push off of one another from rest. What is the momentum of astronaut 1?

•  $453\ kg\cdot\frac{m}{s}$  

•  $-453\ kg\cdot\frac{m}{s}$  

•  $0\ kg\cdot\frac{m}{s}$  

• No way to determine
  

Multiple Choice

If astronaut 1 has a mass of 65 kg and astronaut 2 has 75 kg, then how fast are they both moving away from each other?

• v1 = 6.97 m/s
  v2 = 6.04 m/s
  

• v1 = 6.04 m/s
  v2 = 6.97 m/s
  

• v1 =  - 6.97 m/s
  v2 = 6.04 m/s

• v1 = - 6.04 m/s
  v2 = 6.97 m/s