Advertisements
Advertisements
Question
From the displacement – time graph shown given below calculate :
- Velocity between 0 – 2 s.
- Velocity between 8 s – 12 s.
- Average velocity between 5 s – 12 s.
Advertisements
Solution
1. Velocity between 0 – 2 s = `(-(25-10))/2` .......[negative sign because slope is negative]
= `-15/2`
= −7.5 ms−1
2. Velocity between 8 s – 12 s = `(25-20)/(12-8)=5/4`
= 1.25 ms−1
3. Average velocity between 5 s – 12 s
= `"Total displacement from 5 s to 12 s"/"Time"`
= `(25-10)/(12-5)`
= `15/7`
= 2.1 ms−1
APPEARS IN
RELATED QUESTIONS
A body travels a distance of 3 km towards East, then 4 km towards North and finally 9 km towards East.
What is the resultant displacement ?
Can displacement-time sketch be parallel to the displacement axis? Give a reason to your answer.
Figure shows the displacement-time graph of two vehicles A and B moving along a straight road. Which vehicle is moving faster? Give reason.
The following table gives the displacement of a car at different instants of time.
| Time (s) | 0 | 1 | 2 | 3 | 4 |
| Displacement (m) | 0 | 5 | 10 | 15 | 20 |
- Draw the displacement-time sketch and find the average velocity of the car.
- What will be the displacement of the car at (i) 2.5 s and (ii) 4.5 s?
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
A body is moving along a circular path of radius r. What will be the distance and displacement of the body when it completes:
Two full revolutions
Is distance covered during nth second more than the distance covered in n seconds?
A particle is moving in a circular path of radius r. The displacement after half a circle would be
Distance is a ______ quantity.
Is displacement a scalar quantity?
