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प्रश्न
What is the Differnece between speed and velocity ?
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.
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संबंधित प्रश्न
Under which condition is the magnitude of average velocity equal to average speed ?
State whether speed is a scalar or a vector quantity. Give reason for your choice.
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(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.
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Write down the type of motion of a body along with the A – O – B of the following distance – time graph.
