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axer
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Hello, so i know in a free fall the acceleration is constant (9.8 m/s2) therefore speed/velocity is increasing.. But I am wondering why we can't use Speed=D/T
axer said:Hello, so i know in a free fall the acceleration is constant (9.8 m/s2) therefore speed/velocity is increasing.. But I am wondering why we can't use Speed=D/T
You most definitely can use the velocity = d/t formula. Just keep in mind that the speed you will find from this equation will be the average velocity, this means that it is the average of all the velocities combined since you are combining the total distance and total time.axer said:Hello, so i know in a free fall the acceleration is constant (9.8 m/s2) therefore speed/velocity is increasing.. But I am wondering why we can't use Speed=D/T
The speed equation, also known as the kinematic equation, cannot be applied in a free fall because the acceleration of an object in free fall is not constant. In free fall, the acceleration due to gravity is constantly changing as the object falls towards the ground. Therefore, the speed equation, which requires a constant acceleration, cannot accurately calculate the speed of an object in free fall.
The equation for calculating speed in a free fall is v = gt, where v is the final velocity, g is the acceleration due to gravity (9.8 m/s^2), and t is the time the object has been falling. This equation takes into account the changing acceleration of an object in free fall and provides a more accurate calculation of speed.
No, the speed equation can only be applied in situations where the acceleration is constant. This includes scenarios such as an object rolling down an incline or a car traveling at a constant speed. In situations with changing acceleration, such as free fall, the speed equation cannot be used.
Yes, the speed equation can be modified by incorporating the changing acceleration into the equation. This is done by using calculus and creating a new equation, which is v = u + at, where u is the initial velocity. This equation is more complex but can accurately calculate the speed of an object in free fall.
It is important to understand the limitations of the speed equation because it allows us to accurately apply it in situations where it is appropriate. By understanding that the speed equation cannot be used in a free fall, we can avoid making incorrect calculations and better understand the concepts of acceleration and velocity. It also highlights the need for more advanced equations, such as the one used for free fall, in more complex situations.