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On Earth, gravitational force causes objects to accelerate at 9.8m/s2 towards the ground.
Gravitational Force:
On Earth, gravitational force causes objects to accelerate at 9.8m/s2 towards the ground.
Normal Force:
A supporting force exerted by a surface, perpendicular to it.(inertia)
Frictional Force:
o Opposes motion between surfaces in contact. o Static Friction: Prevents motion. o Kinetic Friction: Opposes motion once an object is moving.Friction depends on the nature of the surfaces and the normal force but not on the contact area.
Air Resistance
A form of friction when objects move through air. o Increases with speed and surface area.
