2
Q:
A) 8 sec | B) 8.5 sec |
C) 9 sec | D) 9.5 sec |
Answer: C) 9 sec
Explanation:
Explanation:
Relative speed = 68-8 = 60 km/hr = 60 X 5 / 18 m/s = 50/3 m/s
Total distance = 150 m
Time taken to pass a man running in same direction = 150 X 3/50 = 9 seconds