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प्रश्न
In which of the following cases of motion, the distance moved and the magnitude of displacement are equal?
विकल्प
if the car is moving on straight road
if the car is moving on circular road
if the pendulum is moving to and fro
if a planet is moving around the sun
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उत्तर
if the car is moving on straight road
The magnitude of displacement is equal to the distance travelled by a body when it travels in a straight line.
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संबंधित प्रश्न
Under what conditions can a body travel a certain distance and yet its resultant displacement be zero ?
Fill in the following blank with suitable word :
Displacement is a…………………… quantity whereas distance is a………………………….
An ant travels a distance of 8 cm from P to Q and then moves a distance of 6 cm at right angles to PQ. Find its resultant displacement.
A body travels a distance of 3 km towards East, then 4 km towards North and finally 9 km towards East.
What is the total distance travelled ?
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
The table below shows the distance travelled by two vehicles A and B during each second:
| Time (s) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Distance travelled by A (m) | 0 | 20 | 80 | 180 | 240 | 300 | 360 | 420 |
| Distance travelled by B (m) | 0 | 10 | 40 | 90 | 160 | 250 | 360 | 490 |
Which vehicle is moving with a constant acceleration?
Exercise Problems.
An athlete completes one round of a circular track of diameter 200 m in 40 s. What will be the distance covered and the displacement at the end of 2 m and 20 s?
Which of the following is correct?
A car starts from rest and moves along the x-axis with constant acceleration 5 ms–2 for 8 seconds. If it then continues with constant velocity, what distance will the car cover in 12 seconds since it started from the rest?
The displacement covered by the second hand of radius V in a clock after one revolution is ______.
