MOTION ALONG STRAIGHT LINE
Motion is the change in place or position of a body to the earth’s surface . It is a continuous change of position with respect to a certain reference point.
Kinds of Motion
1. Rectilinear or Translatory = when body follows a straight path
2. Curvilenear = when the path is along a curve path.
Kinematics a branch of mechanics which describes how objects move.
= the part of mechanics concerned with describing motion
= the part of mechanics concerned with describing motion
Coordinates = describing the position of a point.
Distance refers to the total path’s length and is a scalar quantity.
Displacement refers to the straight line distance between the starting and end points.
It is a vector quantity.
It is a vector quantity.
Speed is the rate of motion.(scalar quantity)
Velocity is a speed with direction(vector quantity)
Average Speed = the total distance travled divided by time it takes to travel this
distance.
Average Speed = the total distance travled divided by time it takes to travel this
distance.
FEATURES OF UNIFORM MOTION1. Distance traveled for each unit of time are equal.
2. Distance is directly proportional to time and the graph is straight line sloping upward
to the right; the v-t graph is a straight line
3. The slope of the d-t graph is constant and represents the constant speed
4. The distance traveled is the constant speed multiplied by time, and this can be obtained
by getting the area under the graph line.
Acceleration is the change in velocity per unit of time.
