Advertisements
Advertisements
प्रश्न
When will you say a body is at uniform acceleration?
Advertisements
उत्तर
- A body is said to have uniform acceleration if it travels in a straight path in such a way that its velocity changes at a uniform rate.
- i.e., the velocity of a body increases or decreases by equal amounts in an equal interval of time.
APPEARS IN
संबंधित प्रश्न
Fill in the following blank with suitable word :
If a body moves with uniform velocity, its acceleration is ..............
Derive the formula : v = u + at, where the symbols have usual meanings.
A car is travelling along the road at 8 ms-1. It accelerates at 1 ms-2 for a distance of 18 m. How fast is it then travelling ?
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 :
For a uniformly retarded motion, the velocity-time graph is _____________
When is the positive acceleration?
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?

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)
An object starting from rest travels 20 m in the first 2 s and 160 m in the next 4 s. What will be the velocity after 7 s from the start?
