A body travels a distance of `15 m` from `A` to `B` and then moves a distance of `20 m` at right angles to `AB`. Calculate the total distance travelled and the displacement.

Answer

`35 m` , `25 m`

Explanation

Here, ` AB = 15 m, BC = 20 m`,
Distance ` = AB + BC`
` = 15 + 20 = 35 m`
Displacement ` = vec(AC) , where | vec (AC)| = sqrt( AB^(2) + BC^(2))`
` = sqrt( 15^(2) + 20^(2)) = sqrt( 625) = 25 m`