Advertisements
Advertisements
प्रश्न
What information about the motion of a body are obtained from the displacement-time graph?
Advertisements
उत्तर
From displacement-time graph, the nature of motion (or state of rest) can be understood. The slope of this graph gives the value of velocity of the body at any instant of time, using which the velocity-time graph can also be drawn.
APPEARS IN
संबंधित प्रश्न
State whether distance is a scalar or a vector quantity.
Fill in the following blank with suitable word :
Displacement is a…………………… quantity whereas distance is a………………………….
Is displacement a scalar quantity?
A body starts with an initial velocity of 10m s-1 and acceleration 5 m s-2. Find the distance covered by it in 5 s.
A car travels a distance 100 m with constant acceleration and average velocity of 20 ms-1. The final velocity acquired by the car is 25 ms-1.
Find
(i) The initial velocity.
(ii) Acceleration of the car.
How can you find the following?
Velocity from a displacement – time graph.
From the displacement – time graph shown given below calculate:
- Average velocity in the first three seconds.
- Displacement from the initial position at the end of 13 s.
- Time after which the body is at the initial position,
- Average velocity after 8 s.
A motor car slows down from 72 kmh−1 to 36 kmh−1 over a distance of 25 m. If the brakes are applied with the same force
calculate
- total time in which car comes to rest
- distance travelled by it.
A satellite makes a complete round along its circular orbit. What is its displacement?
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?
