A) \[\sqrt{gR}\]
B) \[\sqrt{\frac{g{{R}^{2}}}{R+x}}\]
C) \[\sqrt{\frac{g{{R}^{3}}}{R+x}}\]
D) \[\sqrt{\frac{gR}{g+x}}\]
Correct Answer: B
Solution :
[a] \[{{V}_{PG}}\]= velocity of police with respect to ground \[{{V}_{TG}}\]= velocity of theif w.r.t. ground \[{{V}_{TP}}\] = velocity of theif w.r.t. police \[{{V}_{TP}}=[153-45]\times \frac{5}{18}=30m/s\] \[{{V}_{BC}}=180-30\] \[{{V}_{BC}}=150m/s\]
You need to login to perform this action.
You will be redirected in
3 sec
