Advertisements
Advertisements
प्रश्न
A train travels 700 metres in 35 seconds. What is its speed in km/h?
Advertisements
उत्तर
Distance = 700 m
Time taken = 35 sec
∴ Speed in m/sec = `"Distance"/"Time"`
= `700/35`
= 20 m/sec
and Speed in km/h = `(20xx60xx60)/1000`
= 72 km/h
APPEARS IN
संबंधित प्रश्न
A and B working together can do a piece of work in 10 days B alone can do the same work in 15 days. How long will A alone take to do the same work?
A and B take 6 hours and 9 hours respectively to complete a work. A works for 1 hour and then B works for two hours.
(i) How much work is done in these 3 hours?
(ii) How much work is still left?
A, B and C can do a piece of work in 12, 15 and 20 days respectively. How long will they take to do it working together?
Two taps can fill a cistern in 10 hours and 8 hours respectively. A third tap can empty it in 15 hours. How long will it take to fill the empty cistern, if all of them are opened together?
A racing car covered 600 km in 3 hours 20 minutes. Find its speed in metre per second. How much distance will the car cover in 50 sec?
The speed of sound in air is about 330 ms-1. Express this speed in kmh-1. How long will the sound take to travel 99 km?
| S.No | Speed | Distance | Time (Hours) |
| i | 35 Km/hour | 280 Km | |
| ii | 40 Km/hour | 360 Km | |
| iii | 45 Km/hour | 315 Km | |
| iv | 50 Km/hour | 300 Km | |
| v | 55 Km/hour | 275 Km |
Wilson reached 240 Km at the speed of 60 Km/hour. How much time did he travelled?
Fathima reached 480 Km at the speed of 120 Km/hour. How much time did she travelled?
The SI unit of speed is:
