Welcome :-D
Rectilinear motion [straight path]
--> distance and displacement are equal.
--> speed and velocity are also equal.
Note-1
--> In a straight line motion the ratio of distance by displacement is equal to 1.
--> In a straight line motion the ratio of speed and velocity is equal to 1.
Note-2
In gernal: [covered path]
Distance
--> ------------------------ = >1
Displacement
Displacement
--> -------------------------------- = <1
Distance
speed
--> ------------------- = >1
Velocity
Velocity
--> ----------------------- = <1
Speed
Average speed
--> It is defined as the ratio of total distance taken by an object.
--------------------------- ,
Total time
--> Average speed= total distance
---------------------------
Total time
Average velocity
--> average velocity= total displacement
-------------------------------------
Total time
Converting km/h to m/s
--> 1km 1000m 5
---------- = --------------- = ----- m/s
1h 3600s 18
--> 2kmph = 2×5/18 m/s
_______________________
--> 1kmph = 5/18 m/s
--> 1m/s = 18/5 kmph
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!!!!Credits to the owner for the cover it is not mine!!!!
See you in part-4 bye :wave:
![Motion part-3-Welcome :-D
[CU] Rectilinear motion [straight path]
--> distance and displacement are equal.
--> speed and ve](https://image.staticox.com/?url=http%3A%2F%2Fpm1.aminoapps.vertvonline.info%2F8303%2F257be9f836e69a1207f62b320f6b44db7465912dr1-2048-781v2_hq.jpg)
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