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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
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?
A bullet initially moving with a velocity 20 m/s strikes a target and comes to rest after penetrating a distance 10 cm into the target. Calculate the retardation caused by the target.
When is the acceleration due to gravity positive?
The change in velocity of a motorbike is 54 kmh−1 in one minute. Calculate its acceleration in (a) ms−2 (b) kmh−2.
Draw velocity – time graph for the following situation:
When a body is moving with variable velocity, but uniform retardation.
Sketch the shape of the velocity-time graph for a body moving with:
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The value of acceleration for a body at rest is ______.
Assertion: A positive acceleration of a body can be associated with the slowing down of the body.
Reason: Acceleration is a vector.
