A train 12m long crosses a standing man in 15 seconds.Find the speed of the train in km/hr.
28.8km/hr
28.5km/hr
28.9km/hr
none of these
To convert a speed of m/sec into km/hr,multiply by ____________
5/17
8/15
18/5
17/5
A train covers 108 km in first two hours,36km in next half an hour and 90km in next two hours.Find the average speed of the train during the whole journey.
50km/hr
51km/hr
53km/hr
52km/hr
A car is travelling at a speed of 30Km/hr.How far it travel in 50 minutes.
41.51Km/hr
40.67Km/hr
41.67km/hr
None
Average speed is calculated by dividing total distance covered by ________________
Average time taken
Total time taken
total length o0f the object
None of these
We can calculate time of an object by dividing the distance travelled by the object by ___________
Speed
height object
weight of object
an aeroplane flies 3000km in 1 hour 30 minuts find its speed.
1000km/hr
1500km/hr
2000km/hr
25km/hr
The distance travelled by a moving body is a unit of time is called its________
inertia
friction
Change the speed of 40m/sec into Km/hr
144km/hr
124km/hr
120km/hr
140km/hr
A man crosses a road 250 meters wide in 75 seconds.His speed in km/hr is
10
12
12.5
15
