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प्रश्न
The unit of retardation is ____________
विकल्प
m s-1
m s-2
m
m s2
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उत्तर
The unit of retardation is m s-2
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संबंधित प्रश्न
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 .
A car travels with uniform velocity of 25 m s-1 for 5 s. The brakes are then applied and the car is uniformly retarded and comes to rest in further 10 s. Find:
- The distance which the car travels before the brakes are applied,
- Retardation and
- The distance travelled by car after applying the brakes.
Is it possible for an accelerating body to have constant speed?
Interpret the following graph:
Convert the following acceleration:
1/36 m/s2 into km/h2
A car starts from rest and it is travelling with a velocity of 20 m/s in 10 s. What is its acceleration?
The slope of a velocity-time graph gives ______.
If the velocity of a body does not change, then its acceleration is ______.
What is meant by negative acceleration?
When an object undergoes acceleration ______.
