Distance and Displacement
This lesson explains the concepts of distance and displacement in translational motion. It covers how to measure distance without considering direction and how displacement includes both distance and direction. The lesson also discusses the position of an object in relation to a reference point.
- 07:20 “But since these two vectors are in opposite direction, it is very easy to subtract and get the resultant displacement. So this is going to be 250 minus 105. And after subtracting, we have our results to be 145 miles. And...”
- 03:12 “from point P to point Q. This is the object, it's moving from point P to point Q. If we want to calculate, if we take the distance of this one to be 3 km and we have another object B moving on the same point of reference...”
- 08:06 “the distance. If we look at the two of them, they are one of the major key measuring fundamental quantity. And that is the displacement is actually measured in meter written as this. And the distance as well, the unit, t...”
Plane Figures and Their Properties
This lesson covers the identification and properties of various plane figures such as squares, rectangles, triangles, and circles. It explains how to calculate the area and perimeter of these shapes. The lesson also includes the classification of triangles their sides.
- 10:55 “Therefore, the perimeter of the field is 180 meters. Moving on to the second question. A rectangle has a perimeter of 80 meters. Find the length of the rectangle if its breadth is 18 meters. From the question you see, we...”
- 11:42 “So we just impute, substitute our values into the equation. Therefore, 80 is into bracket 2. It is equal to 2 bracket length plus breadth, which is 18. To solve that, we divide both sides by 2 to eliminate 2 on the other...”
- 10:08 “We have worked examples here, calculate the perimeter of a football field, which measures 60 meters by 30 meters. From the example, it is noticeable, or you should know that it is not a square field. It is a rectangular...”