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प्रश्न
Define variable velocity and give one example.
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उत्तर
When a body covers unequal distances in equal intervals of time in a specified direction, the body is said to be moving with a variable velocity.
Example: A rotating fan at a constant speed has variable velocity, because of continuous change in direction.
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संबंधित प्रश्न
What does the path of an object look like when it is in uniform motion?
Name the physical quantity which gives us an idea of how slow or fast a body is moving.
What do you mean by motion in one direction?
Arrange the following speeds in increasing order.
10 m s-1, 1 km min-1 and 18 km h-1.
Figure shows the displacement of a body at different times .
Calculate the velocity of the body as it moves for time interval :
(i) 0 to 5 s,
(ii) 5 s to 7 s
(iii) 7 s to 9 s.
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]
The velocity-time graph of a moving body is given below in Figure
Total displacement.
The velocity-time graph of a moving body is given below in Figure
Displacement in each part AB, BC and CD.
Define uniform velocity and give one example.
Write down the type of motion of a body along with the A – O – B of the following distance – time graph.
