Galileo & Physics of Motion
Motion of falling bodies (vertical motion):
- In a medium totally devoid of resistance, all bodies will fall at the same speed and during equal intervals of time receive equal increments of velocity - that is Constant Acceleration
- Tests by controlled experiments
Principle of inertia: An object moving on level surface (horizontal motion) will continue to move in the same direction at constant speed (that is constant velocity) unless it is disturbed.
Principle of Superposition: If a body is subjected to two separate influences, each producing a characteristic type of motion, it responds to each without modifying its response to the other.