Advertisements
Advertisements
प्रश्न
A body is moving along a circular path of radius r. What will be the distance and displacement of the body when it completes:
Full revolution
Advertisements
उत्तर

Distance travelled is =perimeter of circle.
So distance travelled is =2π r.
Displacement =0 as starting and ending point are coinciding.
APPEARS IN
संबंधित प्रश्न
In which of the following cases of motion, the distance moved and the magnitude of displacement are equal?
Clarify the difference.
Distance and displacement
A body starts from rest with uniform acceleration 2 m s-2. Find the distance covered by the body in 2 s.
Draw displacement – time graph for the following situation:
When a body is moving with uniform velocity.
A motorbike running at 90 kmh−1, is slowed down to 54 kmh−1 by the application of brakes, over a distance of 40 m. If the brakes are applied with the same force, calculate
- total time in which bike comes to rest
- total distance travelled by bike.
Assertion: Displacement of a body may be zero when distance travelled by it is not zero.
Reason: The displacement is the shortest distance between initial and final position.
Give one example where the displacement is zero but the distance travelled is not zero.
Give some examples for vector quantity.
An object is dropped from rest at a height of 150 m and simultaneously another object is dropped from rest at a height of 100 m. What is the difference in their heights after 2s if both the objects drop with the same accelerations? How does the difference in heights vary with time?
Choose the correct option.
