A) 1/4
B) 1/3
C) 2/3
D) 3/4
Correct Answer: C
Solution :
\[{{m}_{1}}{{v}_{1}}-{{m}_{2}}{{v}_{2}}=({{m}_{1}}+{{m}_{2}})v\] \[\Rightarrow \,\,2\times 3-1\times 4=(2+1)v\] \[\Rightarrow \] \[v=\frac{2}{3}m/s\]You need to login to perform this action.
You will be redirected in
3 sec