Advertisements
Advertisements
Question
Arrange the following speed in increasing order (keeping the least speed first
A scooter moving with a speed of 30 km/h.
Advertisements
Solution
A scooter moving with a speed of 30 km/h. Converting into S.I. units, the speed will be :
= `((30)(1000))/3600`
= 8.33 m/s
On arranging the speeds in ascending order, we get :
(ii) < (iii) < (i)
APPEARS IN
RELATED QUESTIONS
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 ?
A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:
How long does it take to travel 240 m ?
A car is moving on a straight road with uniform acceleration. The speed of the car varies with time as follows :
Time (s) : 0 2 4 6 8 10
Speed (m/s) : 4 8 12 16 20 24
Draw the speed-time graph by choosing a convenient scale. From this graph :
(1) Calculate the acceleration of the car.
(2) Calculate the distance travelled by the car in 10 seconds.
When is a body said to be in motion?
Give an example of the motion of a body moving with a constant speed but with a variable velocity. Draw a diagram to represent such a motion.
A car travels the first 30 km with a uniform speed of 60 km h−1 and the next 30 km with a uniform speed of 40 km h−1. Calculate :
- The total time of journey,
- The average speed of the car.
A train takes 2 h to reach station B from station A, and then 3 h to return from station B to station A. The distance between the two stations is 200 km. Find:
The average speed,
The average velocity of the train.
Define variable velocity and give one example.
What is the relation between distance and time when the body is moving with variable velocity?
Distinguish between speed and velocity.
