What Are the Different Equations for Free Fall Drop?

AI Thread Summary
The primary equation for free fall is H = 1/2gt^2, which calculates the height based on gravitational acceleration and time. Another equation mentioned is ΔX = ViTf + 1/2aTf^2, which can be adapted for free fall by setting the initial velocity (Vi) to zero and replacing x with y. Both equations are related, as they describe the motion of an object under gravity. The discussion clarifies that while there are variations, they fundamentally describe the same physical phenomenon. Understanding these equations is crucial for analyzing free fall motion accurately.
Let It Be
Messages
45
Reaction score
0
1. Wondering if there are any different equations out there for free fall drop.



2. The only one I received was H=1/2gt^2


3. I don't know if there are any others, someone said ΔX=ViTf+1/2aTf^2, but I don't think that's for free fall?
 
Physics news on Phys.org
You want equation for velocity at any instant or something else?
 
they are same things. in second equation replace x by y and as the object is in free fall, initial velocity is zero.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Homework help: Dropping a sand bag from a Hot Air Balloon
Replies
3
Views
989
Calculating Train Deceleration: Kid's Free Fall Time
Replies
5
Views
1K
Two balls, dropped with a delay of ##\Delta t##, meet after rebound
Replies
34
Views
2K
Solving for the Alaskan Rescue Team Equation
Replies
3
Views
4K
How to calculate the wind force acting on a water drop?
Replies
39
Views
3K
Compare the ratio of two times t1/t2 in this vertical jump
Replies
3
Views
1K
Velocity of a falling folded rope and reaction force
Replies
10
Views
2K
What is the initial speed of the rock when thrown off a cliff?
Replies
12
Views
4K
Descend Speed After Dropping Glasses: 9.8 m/s
Replies
4
Views
1K
Analyzing the Fall of a Chain: Problem 103 of 200 Puzzling Physics Problems
Replies
7
Views
2K

Hot Threads

Recent Insights

Back
Top