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प्रश्न
What do you mean by motion in one direction?
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उत्तर
When a body moves along a straight line path, its motion is said to be one-dimensional motion.
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संबंधित प्रश्न
Under what condition(s) is the magnitude of average velocity of an object equal to its average speed?
In addition to speed, what else should we know to predict the position of a moving body ?
A train travels the first 15 km at a uniform speed of 30 km/h; the next 75 km at a uniform speed of 50 km/h; and the last 10 km at a uniform speed of 20 km/h. Calculate the average speed for the entire train journey.
A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:
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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.
One of the following is not a vector quantity. This one is :
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Express the following in m s−1.
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