Advertisements
Advertisements
प्रश्न
Which of the following statement is correct regarding velocity and speed of a moving body?
पर्याय
velocity of a moving body is always higher than its speed
speed of a moving body is always higher than its velocity
speed of a moving body is its velocity in a given direction
velocity of a moving body is its speed in a given direction
Advertisements
उत्तर
velocity of a moving body is its speed in a given direction
Velocity is a vector quantity having a magnitude and a specific direction. So, velocity is nothing but speed in a particular direction.
APPEARS IN
संबंधित प्रश्न
Name the physical quantity obtained by dividing ‘Distance travelled’ by ‘Time taken’ to travel that distance.
Arrange the following speed in increasing order (keeping the least speed first):
An athlete running with a speed of 10 m/s.
A train starting from Railway Station attains a speed of 21 m/s in one minute. Find its acceleration.
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.
Express 15 m s-1 in km h-1.
Express the following in m s-1.
18 km min-1
Figure shows the displacement of a body at different times .

Calculate the average velocity during the time interval 5 s to 9 s ,
[Hint : From 5 s to 9 s , displacement = 7 m - 3m = 4m]
Define speed of a body.
Distinguish between speed and velocity.
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.
