Advertisements
Advertisements
प्रश्न
What happens to the stepwise increasing speed-time graph when the size of each step is made very small?
उत्तर
The graph becomes straight line with positive slope with time axis and represents almost a constant acceleration.
APPEARS IN
संबंधित प्रश्न
Figure shows the velocity-time graphs for two cars A and B moving in the same direction. Which car has greater acceleration? Give reasons to your answer.
A train moving with a velocity of 20 m s-1 is brought to rest by applying brakes in 5 s. Calculate the retardation.
When is the acceleration due to gravity negative?
Can you use the relation [B1]?
A car accelerates to a velocity of 30 m/s in 10 s and then decelerates for 20 s so that it stops. Draw a velocity-time graph to represent the motion and find:
Distance travelled
Correct your friend who says that acceleration gives the idea of how fast the position changes.
If a body starts from rest, what can be said about the acceleration of the body?
It is possible to have objects moving with uniform speed but variable acceleration.
Assertion: A positive acceleration of a body can be associated with the slowing down of the body.
Reason: Acceleration is a vector.
What is the difference between uniform acceleration and non–uniform acceleration?
