Advertisements
Advertisements
प्रश्न
What is meant by the term retardation? Name its S.I. unit.
Advertisements
उत्तर
Retardation is the decrease in velocity per second.
Its SI unit is metre/second2 (m/s2).
APPEARS IN
संबंधित प्रश्न
Define the term acceleration due to gravity. State its average value.
A train starts from rest and accelerates uniformly at a rate of 2 m s−2 for 10 s. It then maintains a constant speed for 200 s. The brakes are then applied and the train is uniformly retarded and comes to rest in 50 s. Find
- The maximum velocity reached,
- The retardation in the last 50 s,
- The total distance travelled,
- The average velocity of the train.
State its value in C.G.S. as well as in S.I. system.
Distinguish between uniformly and non-uniformly accelerated motions.
Is it possible for an accelerating body to have constant speed?
What happens to the stepwise increasing speed-time graph when the size of each step is made very small?
The graph shows how the velocity of a scooter varies with time in 50 s.
Work out: Deceleration
The rate of change of velocity is ______.
When a body starts from rest, the acceleration of the body after 2 seconds in ______ of its displacement.
Acceleration is a scalar.
