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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
A toy car initially moving with uniform velocity of 18 km h-1 comes to a stop in 2 s. Find the retardation of the car in S.I. units.
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.
From the velocity – time graph given below, calculate deceleration in region BC.
A motor bike running at 5 ms−1, picks up a velocity of 30 ms−1 in 5s. Calculate
- acceleration
- distance covered during acceleration.
State if the following situation is possible:
A body moving horizontally with an acceleration in vertical direction.
The rate of change of velocity is ______.
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.
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.
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.
What is the difference between uniform acceleration and non–uniform acceleration?
