A train is moving with the speed of 180 km/hr. Its speed (in metres per second) is :
A. 5 m/s
B. 40 m/s
C. 30 m/s
D. 50 m/s
Answer: Option D
Solution(By Examveda Team)
Speed of the train is = 180 km/hr$$\because $$ 1 km/hr = $$\frac{5}{18}$$ m/s
Since,
1 km = 1000 metres
1 hr = 60 × 60 seconds
∴ 1 km/hr = $$\frac{1000}{60 × 60}$$
= $$\frac{5}{18}$$ m/s
∴ Speed in m/s :
= 180 × $$\frac{5}{18}$$
= 50 m/s
Related Questions on Speed Time and Distance
A. 48 min.
B. 60 min.
C. 42 min.
D. 62 min.
E. 66 min.
A. 262.4 km
B. 260 km
C. 283.33 km
D. 275 km
E. None of these
A. 4 hours
B. 4 hours 30 min.
C. 4 hours 45 min.
D. 5 hours
Join The Discussion