Incrossing a platform,a train has to cover a distance equal to the sum of the lengths of the train and the ___________
distance covered
platform
speed
none of these
Find the time taken by a train 180 m long,running at 72km/hr,in crossing an electric pole.
9 seconds
10 seconds
8 seconds
11 seconds
To convert a speed of m/sec into km/hr,multiply by ____________
5/17
8/15
18/5
17/5
Change a speed of 63km/hr into m/sec
17.2m/sec
17.4m/sec
17.5m/sec
none
Change the speed of 90km/hr into m/sec
25m/sec
20m/sec
50m/sec
11m/sec
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
A man crosses a road 250 meters wide in 75 seconds.His speed in km/hr is
10
12
12.5
15
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
To calculate speed in km/hr,divide the distance in _________and time in ________
(m and hours)
km and seconds
km and hours
m and seconds
