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Physics class 11 lecture
11 class physics lecture
Transcript
00:01Difference between distance and displacement, distance, the path, covered by a body, from
00:21one toe and other point is called distance, the path, covered by a body,
00:55from one toe and other point in a particular direction
01:15is known as displacement or it is the shortest distance
01:38between two points
01:48distance is a scalar quantity
01:57while displacement is vector quantity
02:16distance is denoted by S or D or X
02:35displacement is denoted by S arrow R D arrow R X arrow
02:57distance can be positive but cannot be negative and zero because it is a scalar quantity
03:23displacement can be positive, negative and zero because it is a vector quantity
03:40distance is calculated by using formula
03:45S is equal to V into T
03:51displacement is calculated by using formula
04:05from following three paths, 1,2 and 3 the path of displacement is 1 means this is displacement and the
04:182 and 3 path is for distance the SI unit of distance is meters CGS unit is
04:27centimeters and FPS unit is foot the dimension
04:44the dimensions of distance are M0 L T0 the SI
05:05CGS and FPS units of displacement are same as
05:23date of distance means the units of
05:32displacement are identical to the units of
05:36distance and the dimensions of displacement
05:55are M0 L T0 that is the difference between
06:03distance and displacement
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Physics with Akhtiar Ali Bullo
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