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What is the formula of free fall What does s in the formula mean
Vt=gt
h=1\2(gt*t)
Vt*Vt=2gh
S in this formula is h, and H is the falling distance
What are the formulas of free fall motion?
V＝g*t
h＝g*t^2 / 2
V^2＝2*g*h
Average speed V flat = V / 2 = H / T
How is the formula of free fall derived How is the formula derived from the acceleration formula?
According to the basic laws of kinematics, they are derived from the formulas of acceleration, velocity, displacement and time
Free fall motion formula How long does it take for a 227g steel ball to fall from 60cm? What is the landing speed?
H = 1 / 2GT ^ 2. T = root sign 0.12M
V = GT. V = root sign 12 m / S
Free fall all formulas
1） General formula of free fall motion
1. Initial velocity VO = 0 2. Final velocity VT = GT 3. Falling height h = GT2 / 2 (calculated downward from VO position) 4. Inference vt2 = 2GH
Note: (1) the free fall motion is a uniformly accelerated linear motion with zero initial velocity and follows the law of uniformly variable speed linear motion;
(2) A ＝ g ＝ 9.8m/s2 ≈ 10m / S2 (the gravitational acceleration is smaller near the equator, smaller than the flat land at the high mountain, and the direction is vertical and downward)
(3) Vertical upward throwing motion
1. Displacement s ＝ VO GT2 / 2 2. Terminal velocity vt ＝ VO GT (g = 9.8m/s2 ≈ 10m / S2)
3. Useful inference vt2-vo2 = - 2GS 4. Maximum rising height HM = VO2 / 2g (calculated from the throwing point)
5. Round trip time t = 2VO / g (time from throwing back to the original position)
Note: (1) whole process processing: it is a linear motion with uniform deceleration, with upward as the positive direction, and the acceleration takes a negative value;
(2) Segmented processing: upward is uniform deceleration linear motion, downward is free falling motion, with symmetry;
(3) The rising and falling processes have symmetry, such as equivalent reverse velocity at the same point
2） . commonly used secondary formula for free falling body
Speed at the end of N seconds (M / s): 10,20,30,40,50
Falling height at the end of N seconds (m): 5, 20, 45, 80, 125
Falling height in the nth second (m): 5, 15, 25, 35, 45
Formula of free fall motion S＝1/2*gt2 Explain how this formula came out?
The initial speed is 0
The final speed is GT
You should know
So the intermediate speed is GT / 2
So the intermediate velocity times time is the displacement equal to
S＝1/2*gt2
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