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प्रश्न
Give one example of following motion :
Variable acceleration
उत्तर
Example of variable acceleration: The motion of a vehicle on a crowded road is with variable acceleration.
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संबंधित प्रश्न
What is meant by the term acceleration ? State the SI unit of acceleration.
A cheetah starts from, rest, and accelerates at 2 m/s2 for 10 seconds. Calculate :
(a) the final velocity
(b) the distance travelled.
Explain the meaning of the following equation of motion :v = u + at, where symbols have their usual meanings.
A car is travelling along the road at 8 ms-1. It accelerates at 1 ms-2 for a distance of 18 m. How fast is it then travelling ?
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Derive the following equations for uniformly accelerated motion:
(i) v = u + at
(ii) `"S = ut" + 1/2 "at"^2`
(iii) v2 = u2 + 2aS
where the symbols have their usual meanings.
When is the positive acceleration?
How can you find the following?
Velocity from acceleration – time graph.
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
Area under a v – t graph represents a physical quantity which has the unit
