A cyclist covers the distance of 1.2 km in 3
min,the speed of the cyclist is
(A) 24 km/h
(B) 24 m/h
(C) 24 m/s (D) 26 km/h
A train is 200 m long. If it cross an electric
pole in 10s, then its speed is
(A) 72 km/h (B) 27 km/h
(C) 35 km/h (D) 52 km/h
C
Answers
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2
Explanation:
1. Speed = Distance / Time
- Distance = 1.2 km
- Time = 3 min = 0.05 hrs
- Speed = 1.2 / 0.05 = 24 km/h
2.Speed = Distance / Time
- Distance = 200 m
- Time = 10 s
- Speed = 200/10 = 20 m/s = 72 km/h
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