Advertisements
Advertisements
प्रश्न
A snail covers a distance of 100 metres in 50 hours. Calculate the average speed of snail in km/h.



Advertisements
उत्तर
Distance (d) = 1000 m = 0.1 km
Time (t) = 50 hr
So, we can calculate the speed as :
`"Average Speed" = "Total distance travelled"/"Time"`
Average speed for the entire journey :
= `0.1/50`
= 0.002 km/hr
APPEARS IN
संबंधित प्रश्न
What name is given to the speed in a specified direction ?
Under which condition is the magnitude of average velocity equal to average speed ?
An aircraft travelling at 600 km/h accelerates steadily at 10 km/h per second. Taking the speed of sound as 1100 km/h at the aircraft’s altitude, how long will it take to reach the ‘sound barrier’ ?
The graph given alongside shows how the speed of a car changes with time:

(i) What is the initial speed of the car ?
(ii) What is the maximum speed attained by the car ?
(iii) Which part of the graph shows zero acceleration ?
(iv) Which part of the graph shows varying retardation ?
(v) Find the distance travelled in first 8 hours.
Which of the following statement is correct regarding velocity and speed of a moving body?
What do you mean by motion in one direction?
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.

A train is moving with a velocity of 90 km h-1 . It is brought to stop by applying the brakes which produce a retardation of 0.5 ms-2 Find :
(i) The velocity after 10 s , and
(ii) the time taken by the train to come to rest .
Define uniform velocity and give one example.
Distinguish between speed and velocity.
