Advertisements
Advertisements
प्रश्न
A body is moving in a straight line and its displacement at various instants of time is given in the following table
Time (s) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
Displacement (m) | 2 | 6 | 12 | 12 | 12 | 18 | 22 | 24 |
Plot the displacement-time graph and calculate
(i) Total distance travelled in the interval 1 s to 5 s.
(ii) Average velocity in time interval 1 s to 5 s.
उत्तर
(i) Total distance travelled in interval 1s to 5s = 18m - 6m = 12 m.
(ii) Average velocity = Total displacement in the given time interval/Time interval, i.e. 1 s to 5 s.
Or, Average velocity = 12 m/4 s = 3 m/s.
APPEARS IN
संबंधित प्रश्न
Fill in the following blank with suitable word :
Displacement is a…………………… quantity whereas distance is a………………………….
What is the difference between distance travelled by a body and its displacement ? Explain with the
help of a diagram.
Define displacement. State its unit.
When brakes are applied to a bus, retardation produced is 25 cm s-2 and the bus takes 20 s to stop. Calculate -
- The initial velocity of the bus
- The distance travelled by bus during this time.
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.
A body is moving along a circular path of radius r. What will be the distance and displacement of the body when it completes:
Half a revolution
A satellite makes a complete round along its circular orbit. What is its displacement?
Which of the following is correct?
A quantity that has both magnitude and direction is ______.
Displacement can be zero but distance never.