A) zero
B) \[4\,m/{{s}^{2}}\]
C) \[10\,m/{{s}^{2}}\]
D) \[12\,m/{{s}^{2}}\]
Correct Answer: B
Solution :
A has acceleration of \[12\,m/{{s}^{2}}\] \[\therefore \] \[12\times 10=kx\] Now, for block B, \[k\,x=200-20\,a\] \[\Rightarrow \] \[20\,a=200-120\] \[\Rightarrow \] \[a=4\,m/{{s}^{2}}\]You need to login to perform this action.
You will be redirected in
3 sec