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प्रश्न
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उत्तर
Negative acceleration corresponds to situation when velocity is continuously decereasing with respect to the time.
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संबंधित प्रश्न
Define acceleration. State its unit.
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 .
Draw velocity – time graph for the following situation:
When a body is moving with variable velocity, but uniform retardation.
The acceleration of a moving body is constant in magnitude and direction. Must the path of the body be a straight line?
If not, given an example.
A car traveling at 60 km/h, stops on applying brakes in 10 seconds. What is its acceleration?
Assertion: The accelerated motion of an object may be due to change in magnitude of velocity or direction or both of them.
Reason: Acceleration can be produced only by change in magnitude of the velocity. It does not depend the direction.
What do you understand about negative acceleration?
When a body starts from rest, the acceleration of the body after 2 seconds in ______ of its displacement.
Acceleration is a scalar.
When a body is said to be in
- uniform acceleration
- non–uniform acceleration?
