Advertisements
Advertisements
Question
Bus X travels a distance of 360 km in 5 hours whereas bus Y travels a distance of 476 km in 7 hours. Which
bus travels faster ?
Solution
We should first consider Bus X.
Distance travelled (d1) = 360 km
Time taken (d1) = 5 hr
So, we can calculate the speed as :
`"Speed" = "Distance"/"Time"`
Thus , the speed of Bus X is 72 km/h.
Similarly,
For Bus Y :
Distance travelled
Time taken (t2) = 7 hr
So , we can calculate the speed as :
`"Speed" = "Distance"/"Time"`
Thus , the speed of Bus Y is 68 km/h.
Speed of Bus X is more than of Bus Y. Hence , Bus X travels Faster .
APPEARS IN
RELATED QUESTIONS
Under what condition(s) is the magnitude of average velocity of an object equal to its average speed?
Joseph jogs from one end A to the other end B of a straight 300 m road in 2 minutes 30 seconds and then turns around and jogs 100 m back to point C in another 1 minute. What are Joseph’s average speeds and velocities in jogging?
- from A to B and
- from A to C?
A tortoise moves a distance of 100 metres in 15 minutes. What is the average speed of tortoise in km/h ?
A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:
What is its average speed ?
A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:
How far does it travel in 6 seconds ?
Give one example of a motion where an object does not change its speed but its direction of motion changes continuously.
The diagram below shows the pattern of the oil on the road at a constant rate from a moving car. What information do you get from it about the motion of the car.
Figure shows the displacement of a body at different times .
Calculate the velocity of the body as it moves for time interval :
(i) 0 to 5 s,
(ii) 5 s to 7 s
(iii) 7 s to 9 s.
A speeding car changes its velocity from 108 kmh−1 to 36 kmh−1 in 4 s. Calculate its deceleration in
- ms−2
- kmh−2.
A motorcyclist drives from A to B with a uniform speed of 30 km h–1 and returns back with a speed of 20 km h–1. Find its average speed.
