A) \[25cm/{{s}^{2}}\]
B) \[25\text{ r}r/{{s}^{2}}\]
C) \[50cm/{{s}^{2}}\]
D) \[50\,rr/{{s}^{2}}\]
Correct Answer: A
Solution :
Momentum carried by each bullet\[=mv\] \[=0.010\times 500\text{ }kg\text{ }m/s\] \[=5\text{ }kg\text{ }m/s\] Now, force = change in momentum in 1 s \[=5\times 10\] \[=50\,N\] Hence, acceleration\[=\frac{50}{200}m/{{s}^{2}}\] \[=25\text{ }cm/{{s}^{2}}\]
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