**Particle’s Motion Kinematics**

(Part 1)

(Part 1)

a. Position

Position is

**and expressed by te vector quantity***the location of particle relative to a frame of reference***.***r*To exprexx directioan in a Cartesian coordinate, we us a unit vector perpendikular to each other.

Unit vector

**i**( in x direction), andUnit vector

**j**(in y direction)If the particle or object is at point (x, y), then its position is expressed as:

*r = xi + yj*Displacement is the change in position of particle expressed as a vector quantity ∆r.

If r0 is the initial position and rt is the final position, then the displacement can be written mathematically as

r

_{o}+ ∆r = r_{t}**∆r = r**

_{t}– r_{o}or

**∆r = ∆xi + ∆yj**

c. Distance

Distance is the magnitude of displacement traveled

by a particle as scalar quantity I ∆r I or ∆r.

Distance can be written matematically using Pythagoras’ theorem

**Kinematics**

**for High School**

## 0 comments:

## Post a Comment