Advertisements
Advertisements
प्रश्न
What do you understand by the term acceleration?
Advertisements
उत्तर
“Rate of change of velocity with respect to time is called acceleration.” S.I. unit of acceleration is ms−2.
APPEARS IN
संबंधित प्रश्न
A bus decreases its speed from 80 km h−1 to 60 km h−1 in 5 s. Find the acceleration of the bus.
Name the quantity which is measured by the area occupied under the velocity-time graph.
Describe the motion of a body which is accelerating at a constant rate of 10 m s–2. If the body starts from rest, how much distance will it cover in 2 s ?
A bus was moving with a speed of 54 km/h. On applying brakes it stopped in 8 seconds. Calculate the acceleration.
Derive the formula s= `ut+1/2at^2` , where the symbols have usual meanings.
The figure shows the displacement - time graph for four bodies A, B C and D. In each case state what information do you get about the acceleration (zero, positive or negative).

When is the positive acceleration?
How can you find the following?
Acceleration from velocity – time graph.
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?

Can you suggest a real-life example about the motion of a body from the following velocity – time graph?

