Air resistance, also known as drag, is the force exerted by air molecules on an object as it moves through the air. It acts in the opposite direction of an object's motion, slowing it down. In free fall, air resistance can significantly decrease an object's acceleration and affect its overall motion.
The amount of air resistance experienced by an object depends on its surface area and shape. Objects with larger surface areas or streamlined shapes experience more air resistance compared to smaller, more compact objects.
No, air resistance is not the same for all objects in free fall. It depends on factors such as the object's mass, surface area, and shape. Objects with a larger mass or surface area will experience more air resistance compared to smaller, more compact objects.
Air resistance acts in the opposite direction of an object's motion, so it can decrease an object's speed and acceleration. As an object falls, the force of air resistance increases until it becomes equal to the force of gravity, resulting in a constant speed known as terminal velocity.
In most cases, air resistance can be ignored for objects falling near the Earth's surface. However, for objects with large surface areas or falling from very high altitudes, air resistance can significantly affect the object's motion and should be taken into consideration in free fall problems.