A) \[\frac{(V+v)_{{}}^{2}}{x}\]
B) \[\frac{(V-v)_{{}}^{2}}{x}\]
C) \[\frac{(V+v)_{{}}^{2}}{2x}\]
D) \[\frac{(V-v)_{{}}^{2}}{2x}\]
Correct Answer: D
Solution :
[d] Here relative velocity of the train W.r.t other train is \[V-v.\]hence, \[0-{{(V-v)}^{2}}=2ax\] Or \[a=-\frac{{{(V-v)}^{2}}}{2x}\]Minimum retardation =\[\frac{{{(V-v)}^{2}}}{2x}\]
You need to login to perform this action.
You will be redirected in
3 sec
