Table of Contents
What does air resistance affect?
When air resistance acts, acceleration during a fall will be less than g because air resistance affects the motion of the falling objects by slowing it down. Air resistance depends on two important factors – the speed of the object and its surface area. Increasing the surface area of an object decreases its speed.
How does air resistance compare weight?
a. air resistance is much smaller than weight as object is travelling slowly so large resultant force giving a large acceleration.
Do heavier objects fall faster with air resistance?
Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. Air resistance causes the feather to fall more slowly.
What happens when air resistance equals weight?
When drag is equal to weight, there is no net external force on the object, and the acceleration becomes zero. The object then falls at a constant velocity as described by Newton’s first law of motion.
Does air resistance affect time?
How does air resistance affect an object’s landing time, and what variables does air resistance depend on? When an object is dropped from rest (and we ignore air resistance) the time it takes to reach the ground depends only on the initial height and the acceleration of the object.
Does air resistance increase with mass?
Air resistance is insignificant for heavy objects precisely because it doesn’t depend on the mass. Specifically, the change in motion due to air resistance gets bigger as the mass gets smaller.
At what point is the air resistance greater than the weight of the body?
Answer: As the object accelerates the air resistance increases but the weight stays the same, so the resultant force is not as great as before but the object is still accelerating. Therefore the object falls at a steady speed it is no longer accelerating. This is called terminal velocity.
How to calculate air resistance?
Determine the air resistance coefficient k,instantaneous speed v.
What affects air resistance?
When air resistance acts, acceleration during a fall will be less than g because air resistance affects the motion of the falling objects by slowing it down. Air resistance depends on two important factors – thespeed of the object and its surface area. Increasing the surface area of an object decreases its speed.
What is the equation for air resistance?
Air resistance formula. Air resistance, or aerodynamic drag force, is a force that opposes the motion of a body in free fall. The faster you fall, the higher the force is. It can be expressed by the following drag force equation: F = k * v². where v is the instantaneous speed, and k is the air resistance coefficient, measured in kilograms per meter.
What are some examples of air resistance?
Air resistance is a form of drag. Some common examples include a skydiver’s parachute or a piece of paper that floats to the ground when released.