मराठी

What Do You Mean by Motion in One Direction?

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प्रश्न

What do you mean by motion in one direction?

एका वाक्यात उत्तर
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उत्तर

When a body moves along a straight line path, its motion is said to be one-dimensional motion.

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पाठ 2: Motion in One Dimension - Exercise 2 (A) [पृष्ठ ३५]

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सेलिना Concise Physics [English] Class 9 ICSE
पाठ 2 Motion in One Dimension
Exercise 2 (A) | Q 5 | पृष्ठ ३५

संबंधित प्रश्‍न

Joseph jogs from one end A to the other end B of a straight 300 m road in 2 minutes 30 seconds and then turns around and jogs 100 m back to point C in another 1 minute. What are Joseph’s average speeds and velocities in jogging?

  1. from A to B and
  2. from A to C?

Bus X travels a distance of 360 km in 5 hours whereas bus Y travels a distance of 476 km in 7 hours. Which
bus travels faster ?


Arrange the following speed in increasing order (keeping the least speed first): 

An athlete running with a speed of 10 m/s.


Write the formula for acceleration. Give the meaning of each symbol which occurs in it.


A car is moving on a straight road with uniform acceleration. The speed of the car varies with time as follows :
Time (s)              :     0          2         4          6       8         10
Speed (m/s)       :     4          8       12        16     20         24
Draw the speed-time graph by choosing a convenient scale. From this graph :

(1) Calculate the acceleration of the car.
(2) Calculate the distance travelled by the car in 10 seconds.


Which of the following could not be a unit of speed?


A bus moving along a straight line at 20 m/s undergoes an acceleration of 4 m/s2. After 2 seconds, its speed will be:


The speed of a car is 72 km h-1. Express it in m s-1.


Figure shows the displacement of a body at different times . 

Calculate the average velocity during the time interval 5 s to 9 s ,
[Hint : From 5 s to 9 s , displacement = 7 m - 3m = 4m]


The velocity-time graph of a moving body is given below in Figure

The acceleration in parts AB, BC and CD.


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