Kinematic of translation

• Study of motion

  • kinematics
  • dynamics
• Kinematics - describe motion in terms of displacement, velocity, and acceleration
• Dynamics - relates forces and motion
• Frame of reference - is a system allows an observer to specify quantitatively where and when something is observe
• Frame of reference - it may be a physical entity, such as the ground, a room, or a building to which the motion or position of an object is being referred
• Motion - an object’s change in position relative to a reference point
• Position - refers to the location of an object whp ith respect to a frame of reference
• Translation - is the term used in physics for motion
• Distance - is the measure of “how much ground an object has covered during its motion”
• Displacement - refers to the measure of “how far out of place is an object”
• Distance - how far an object travels from its initial to final position, does not depend on direction
• Displacement - is a vector whose length is the shortest distance from the initial to the final position, does depend on direction
• Two types of quantities

  • scalar
  • vector
• Scalar quantities - those that can be described as completely by their magnitude and appropriate unit, no direction
• Vector quantities - completely described by their magnitude, appropriate unit, and direction
• Speed - rate at which an object is moving
• Velocity - is the total displacement per unit time
• Acceleration - refers to the change in velocity