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प्रश्न
What happens to the stepwise increasing speed-time graph when the size of each step is made very small?
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उत्तर
The graph becomes straight line with positive slope with time axis and represents almost a constant acceleration.
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संबंधित प्रश्न
A motor bike running at 90 kmh−1 is slowed down to 18 kmh−1 in 2.5 s. Calculate
- acceleration
- distance covered during slow down.
The distance covered by a body is directly proportional to the square of the time elapsed. What can you say about its acceleration?
Sketch the shape of the velocity-time graph for a body moving with:
Uniform acceleration.
A car accelerates to a velocity of 30 m/s in 10 s and then decelerates for 20 s so that it stops. Draw a velocity-time graph to represent the motion and find:
The Deceleration.
The rate of change of velocity is ______.
Negative acceleration is called ______.
m/s2 is the unit of ______.
A quantity has a value of 16ms-2. It is the ______.
Acceleration is defined as the rate of change of ______.
Assertion: When a body is subjected to a uniform acceleration, it is always moving in a straight line.
Reason: Motion may be straight-line motion or circular motion.
