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
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.
Derive the formula : v = u + at, where the symbols have usual meanings.
A train starting from stationary position and moving with uniform acceleration attains a speed of 36 km per hour in 10 minutes. Find its acceleration.
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 body starts from rest and acquires a velocity 10 m s-1 in 2 s. Find the acceleration.
State how the velocity-time graph can be used to find
The acceleration of a body
When is the negative acceleration?
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)
