Advertisements
Advertisements
Question
Define acceleration. State its unit.
Advertisements
Solution
Acceleration is the rate of change of velocity with time.
Its SI unit is metre/second2 (m/s2).
APPEARS IN
RELATED QUESTIONS
A body falls freely from a certain height. Show graphically the relation between the distance fallen and square of time. How will you determine g from this graph?
Explain the following concept in your own words with everyday examples:
Acceleration
A racing car is moving with a velocity of 50 m/s. On
applying brakes, it is uniformly retarded and comes to rest in 20 seconds. Calculate its acceleration.
From the diagram given below, calculate acceleration.

An aeroplane lands at 216 kmh−1 and stops after covering a runway of 2 m. Calculate the acceleration and the time, in which it comes to rest.
A motor bike running at 5 ms−1, picks up a velocity of 30 ms−1 in 5s. Calculate
- acceleration
- distance covered during acceleration.
A car accelerates uniformly from a velocity of 18 km/h to 36 km/h in 15 min. What is its acceleration?
The rate of change of velocity is ______.
A boy throws a ball up and catches it when the ball falls back. In which part of the motion the ball is accelerating?
What is the difference between uniform acceleration and non–uniform acceleration?
