Advertisements
Advertisements
प्रश्न
What is the Differnece between speed and velocity ?
Advertisements
उत्तर
(i) Speed is a scalar quantity, whereas velocity is a vector quantity.
(ii) Speed of a body is the distance travelled by it per unit time, whereas the velocity of a body is the distance travelled by it per unit time in a given direction.
(iii) Speed is always positive, while velocity can be both positive and negative, depending upon the direction.
APPEARS IN
संबंधित प्रश्न
Under what condition(s) is the magnitude of average velocity of an object equal to its average speed?
A ball hits a wall horizontally at 6.0 m s-1. It rebounds horizontally at 4.4 m s-1. The ball is in contact with the wall for 0.040 s. What is the acceleration of the ball ?
Which of the following statement is correct regarding velocity and speed of a moving body?
Give an example of motion in which the average speed is not zero but the average velocity is zero.
Give one example of following motion :
Uniform velocity
The speed of a car is 72 km h-1. Express it in m s-1.
Arrange the following speeds in increasing order.
10 m s-1, 1 km min-1 and 18 km h-1.
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.
Write down the type of motion of a body along with the A – O – B of the following distance – time graph.
