Friday

December 19, 2014

December 19, 2014

Posted by **Katie** on Tuesday, July 21, 2009 at 10:14pm.

A 100 kg astronaut is standing on the outside surface of a 4.50 x 10^4 kg spacecraft. The astronaut jumps away from the spacecraft at 8.00 m/s. What happens to the spacecraft?

- Math -
**connie (lost)**, Tuesday, July 21, 2009 at 10:19pmmultiply (simplified fraction)

-8/3*(7/1)

- Math -
**Katie**, Tuesday, July 21, 2009 at 10:22pmthat's not right can someone please help.

- Math -
**MathMate**, Tuesday, July 21, 2009 at 11:08pmI believe this is a case of conservation of momentums, namely zero since both objects were stationary to start with.

M_{1}V_{1}+ M_{2}V_{2}= 0

100*8 + 45000*V_{2}= 0

V_{2}

= -100*8/45000

= -0.0178 m/s.

Answer: The spaceship moves at 0.0178 in the opposite direction as the astronaut.

- Math -
**MathMate**, Tuesday, July 21, 2009 at 11:08pmErratum:

Answer: The spaceship moves at 0.0178**m/s**in the opposite direction as the astronaut.

**Answer this Question**

**Related Questions**

math - Help Please. A 100 kg astronaut is standing on the outside surface of a 4...

physical science - A 200.0 kg astronaut and equipment move with a velocity of 2....

physics - A 200.0 kg astronaut and equipment move with a velocity of 2.00 m/s ...

physical science - a 300 kg astronaut and equipment move with a velocity of 2....

science - What will eventually occur if in deep space an astronaut's wrench is ...

Physics - An astronaut of mass m in a spacecraft experiences a gravitational ...

Physics - A 115kg astronaut throws an 18kg tool kit at 4.6m/s away from a ...

Aths - Suppose you are an astronaut spacewalking outside your spacecraft to ...

Physics 1 - An astronaut in her space suit has a total mass of m1 = 76.9 kg, ...

physics - An astronaut in her space suit has a total mass of m1 = 69.7 kg, ...