Ques:- A train takes 9 sec to cross a pole. If the speed of the train is 48 kmph, then length of the train is
A. 80 m
B. 90 m
C. 120 m
D. 150 m
A train takes 9 sec to cross a pole. If the speed of the train is 48 kmph, then length of the train is
48kmph = 48*1000=4800.
9Sec = 9/36 = 0.0025.
Distance=Speed*Time
Hence, 4800*0.0025 =120m
120 m
Time = 9sec
= 0.000277778×9
= 0.002500002 hr
Speed = 48 km/hr
Distance = Speed × Time
48 × 0.002500002
= 0.120000096…km (1000m = 1km)
= 120.000096 m
48*5/18*9=120
Distance = speed * time
Speed = 48kmph
Time = 9s
D = (48*9) * (5/18)
D = 120m
DISTANCE=TIME *SPEED
D=?
48*(5/18)=13.33m/s
D=9*13.333=120m