Table of Contents
How do you calculate when something hits the ground?
How to use the free fall formula: an example
- Determine the gravitational acceleration.
- Decide whether the object has an initial velocity.
- Choose how long the object is falling.
- Calculate the final free fall speed (just before hitting the ground) with the formula v = v₀ + gt = 0 + 9.80665 * 8 = 78.45 m/s .
How do you determine how long an object is in the air?
Use the vertical motion model, h = -16t2 + vt + s where v is the initial velocity in feet/second and s is the height in feet to calculate how long the basketball will be in the air for.
How does air friction affect a falling object?
With air resistance, acceleration throughout a fall gets less than gravity (g) because air resistance affects the movement of the falling object by slowing it down. How much it slows the object down depends on the surface area of the object and its speed.
How do you find the acceleration of a falling object?
Integrating the acceleration once gives V = V o + g T where V o is the initial velocity, presumably zero, and T is the time of fall. Integrating once more gives d = V o T + gT 2 /2. So taking V o = 0 you get
How do you find the free fall distance of an object?
Choose how long the object is falling. In this example, we will use the time of 8 seconds. Calculate the final free fall speed (just before hitting the ground) with the formula v = v₀ + g * t = 0 + 9.80665 * 8 = 78.45 m/s. Find the free fall distance using the equation s = 0.5 * g * t² = 0.5 * 9.80665 * 8² = 313.8 m.
What is the initial velocity of an object in free fall?
On Earth, this value is equal to 9.80665 m/s² on average (which is also the default value set in the free fall calculator). Decide whether the object has an initial velocity.
What happens to the acceleration when an object hits the ground?
When the object comes in contact with the ground or any other object, it is no longer in free fall and its acceleration of g is no longer valid. Under these circumstances, the motion is one-dimensional and has constant acceleration of magnitude g.