A) 1 m/s
B) 5 m/s
C) 7 m/s
D) 10 m/s
Correct Answer: B
Solution :
Distance \[AB=2\times 15=30\,m\] Distance \[BC=8\times 5=40\,m\] Displacement \[(AC)=\sqrt{{{(AB)}^{2}}+{{(BC)}^{2}}}\] \[=\sqrt{{{(30)}^{2}}+{{(40)}^{2}}}\] \[=50\,m\] Total time of travel = 2 + 8 = 10 sec. \[\therefore \] Average velocity \[(V)=\frac{50}{10}=5\]m/sec.You need to login to perform this action.
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