Posted by **David** on Monday, July 28, 2014 at 12:20am.

A 100 kg astronaut carries a launcher loaded with a 10 kg bowling ball; the launcher and the astronaut’s spacesuit have negligible mass. The astronaut discovers that firing the launcher results

in the ball moving away from her at a relative speed of 50 m/s.

The astronaut in the previous situation is now moving at 10 m/s (as measured in a certain frame

of reference). She wishes to fire the launcher so that her velocity turns through as large an angle

as possible (in this frame of reference). What is this maximum angle? (Hint: a diagram may be

useful.)

The answer is 27 degrees. I do not know how. I think she must fire the ball perpendicularly to her velocity, but I instead got 29 degrees as my answer. Help?

- Astronaut launches bowling ball -
**Siddarth**, Monday, July 28, 2014 at 11:54am
The maximum angle actually does not occur when she fires the ball perpendicularly to her velocity. It occurs when the angle between the velocity from the launcher and the resultant velocity are at 90 degrees to each other. The impulse of the astronaut is about 455 Ns. Therefore, the velocity given by the ball is 4.55 m/s. sin angle = 4.55/10 so the angle is 27 degrees.

## Answer this Question

## Related Questions

- Physics - An (63Kg) astronaut, floating alone in outer space, catches a 7Kg ...
- physics - an astronaut on the moon fires a projectile from a launcher on a level...
- Physical Science - An astronaut in a spacesuit has a mass of 100 kilograms. What...
- physics - An astronaut on the Moon fires a projectile from a launcher on a ...
- physics - An astronaut whose mass is 80. kg carries an empty oxygen tank with a ...
- physics - A ball weighing 1.78 N is shot through a launcher, achieving a speed...
- physics - A helicopter lifts a 70 kg astronaut 13 m vertically from the ocean by...
- Physics - A 64.3 kg astronaut is on a space walk when the tether line to the ...
- Physics (been trying all day) - A 62.6 kg astronaut is on a space walk when the ...
- science - A 75 kg astronaut in space pushes against a 200 kg anvil. When the ...

More Related Questions