How do you calculate distance?

Answer 1

DISTANCE:-
The change in position of a body in a random direction is called DISTANCE. It is a scalar quantity.
Distance is represented by S. Time is represented by t.Average velocity is represented by Vav.
FORMULA:-
D=Vavt
FOR EXAMPLE:-
A car covers a distance in 20sec. Its average accelaration is 20ms-1.Find the distance.
SOLUTION:
t=20sec
Vav=20ms-1
D=?
Appying formula
D=VavXt
=20ms-1X20s
=400m/sec ANS

Answer 2

The distance formula and the Pythagorean theorem are really just the same thing. Recall that the Pythagorean theorem allowed you to calculate the hypotenuse, c of a right triangle from the lengths of the other two sides, a and b:


c2=a2+b2
c = [a2+b2]1/2

Think about a piece of graph paper. The x and y axes are always perpendicular, yes? So any line segment on that paper can be thought of as the hypotenuse of a right triangle, with the sides parallel to the x and y axes.

So the length of the line segment, d, is "the square root of the sum of the squares of the other two sides":


d=[(x2-x1)2+(y2-y1)2]1/2

Answer 3

To calculate the distance between two points in space with known coordinates you take the square root of the sum of the squares of the differences.

For instance. If you have a point at 1,2,3 and another at 20,30,40;
First find the differences

20 - 1 = 19
30 - 2 = 28
40 - 3 = 37

Then find the sum of the squares:
19^2 + 28^2 + 37^2 = 2514

Lastly find the square root:
2514^0.5 = 50.140 This is the distance.

To find the direction, or unit vector, and assuming x,y,z, coordinate system, you divide the individual directional amounts by the length:

19/50.14 i + 28/50.14 j + 37/50.14 k

Answer 4

Ruler

Answer 5

Using trigonometry.

Answer 6

distance = speed x time

diatance could be in millimetres, centimetres, metres and kilometres.

Answer 7

distance has created by velocity of light, we can calculate it in any way, by nm. mtr, light year......

Answer 8

Buy a ruler.

Answer 9

d=rt
distance equals rate multiplied by time