Advertisements
Advertisements
Question
When will you say a body is at non-uniform acceleration?
Advertisements
Solution
- A body is said to have non-uniform acceleration if it travels in a straight path in such a way that its velocity changes at a non-uniform rate.
- i.e., the velocity of a body increases or decreases in unequal amounts in an equal interval of time.
APPEARS IN
RELATED QUESTIONS
Define velocity. What is the SI unit of velocity ?
What conclusion can you draw about the velocity of a body from the displacement-time graph shown below :
A motorcycle moving with a speed of 5 m/s is subjected to an acceleration of 0.2 m/s2. Calculate the speed of the motorcycle after 10 seconds, and the distance travelled in this time.
A freely falling object travels 4.9 m in 1st second, 14.7 m in 2 nd second, 24.5 m in 3rd second, and so on. This data shows that the motion of a freely falling object is a case of :
The slope of a speed-time graph gives:
State how the velocity-time graph can be used to find
The acceleration of a body
For a uniformly retarded motion, the velocity-time graph is _____________
A body, initially at rest, starts moving with a constant acceleration 2 m s-2. Calculate: (i) the velocity acquired and (ii) the distance travelled in 5 s.
How can you find the following?
Velocity from acceleration – time graph.
A stone thrown vertically upwards takes 3 s to attain maximum height. Calculate
- initial velocity of the stone
- maximum height attained by the stone. (Take g = 9.8 ms−2)
