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प्रश्न
Interpret the following graph:
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उत्तर
ln this graph portion O to A represents motion with acceleration, A to E represents motion with uniform velocity, 8 to C represents motion with acceleration.
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संबंधित प्रश्न
The velocity-time graph for a uniformly retarded body is a straight line inclined to the time axis with an obtuse angle. How is retardation calculated from the velocity-time graph?
Give an example of an accelerated body, moving with a uniform speed.
A truck running at 90 kmh−1, is brought to rest over a distance of 25 m. Calculate the retardation and time for which brakes are applied.
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.
What does a positive acceleration mean?
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.
A bus can accelerate with an acceleration of 1 m/s2 . Find the minimum time for the bus to attain the speed of 100 km/s from 50 km /s.
If the velocity of a body does not change, then its acceleration is ______.
Acceleration is defined as the rate of change of ______.
Acceleration is a scalar.
