An astronaut weighing 100 kg fires a bullet weighing 1 kg with a gun of 10 kg at the speed of 50 metres/second. What will be the recoil velocity of the gun?
5 cm/s
50 cm/s
0.5 cm/s
0.05 cm/s
An astronaut weighing 100 kg fires a bullet weighing 1 kg with a gun of 10 kg at the speed of 50 metres/second. What will be the recoil velocity of the gun?
List I | List II |
---|---|
Measuring instruments | Which measure |
A. Anemometer | 1. Motor power |
B. Tachometer | 2. Wind speed |
C. Dynamometer | 3. Revolutions per minute |
D. Barometer | 4. Atmospheric pressure |
5.Current from a dynamo |