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प्रश्न
From the given v-t graph it can be inferred that an object is
पर्याय
in uniform motion
at rest
in non - uniform motion
moving with uniform accelerations
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उत्तर
moving with uniform accelerations
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संबंधित प्रश्न
Distinguish between acceleration and retardation.
Define the term acceleration due to gravity. State its average value.
Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts AB, BC and CD.
(a) Is the magnitude of acceleration higher or lower than that of retardation ? Give a reason .
(b) Compare the magnitude of acceleration and retardation .
Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts AB, BC and CD.
Which part of graph shows motion with uniform
(a) velocity (b) acceleration (c) retardation ?
If a body is moving with a constant velocity its acceleration is ______.
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 5 ms−1, picks up a velocity of 30 ms−1 in 5s. Calculate
- acceleration
- distance covered during acceleration.
What does a positive acceleration mean?
Write the SI unit of retardation.
The speed of a car increases from 10 km/h to 64 km/h in 10 seconds. What will be its acceleration?
Out of energy and acceleration, which one is a vector?
A car accelerates uniformly from a velocity of 18 km/h to 36 km/h in 15 min. What is its acceleration?
The graph shows how the velocity of a scooter varies with time in 50 s.
Work out: 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 acceleration.
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.
State whether true or false. If false, correct the statement.
Acceleration can get negative value also.
The slope of a velocity-time graph gives ______.
The speed of a particle is constant. Will it have acceleration? Justify with an example.
Assertion: Position-time graph of a stationary object is a straight line parallel to the time axis.
Reason: For a stationary object, the position does not change with time.
