A 2.0 kg gun fires a 0.020 kg bullet at 400 m/s. The recoil speed of the gun is
- A
40 m/s
- Bcheck_circle
4.0 m/s (, momentum conservation)
- C
0.40 m/s
- D
8.0 m/s
Explanation
. m/s (recoil at 4.0 m/s opposite to bullet).
Conservation of Linear Momentum
AP Physics 1· difficulty 4/5
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