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प्रश्न
Draw a graph for acceleration against time for a uniformly accelerated motion. How can it be used to find the change in speed in a certain interval of time?
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उत्तर
The area enclosed between the straight line and time axis for each interval of time gives the value of change in speed in that interval of time.
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संबंधित प्रश्न
Draw velocity – time graph for the following situation:
When a body is moving with variable velocity, but uniform retardation.
A motorbike, initially at rest, picks up a velocity of 72 kmh−1 over a distance of 40 m. Calculate
- acceleration
- time in which it picks up above velocity.
An aeroplane lands at 216 kmh−1 and stops after covering a runway of 2 m. Calculate the acceleration and the time, in which it comes to rest.
A motor bike running at 5 ms−1, picks up a velocity of 30 ms−1 in 5s. Calculate
- acceleration
- distance covered during acceleration.
State if the following situation is possible:
A body moving with a constant velocity in an accelerated motion.
The graph shows how the velocity of a scooter varies with time in 50 s.
Work out: Deceleration
Correct your friend who says that acceleration gives the idea of how fast the position changes.
When an object undergoes acceleration ______.
If a moving body comes to rest, then its acceleration is ______.
It is possible to have objects moving with uniform speed but variable acceleration.
