All Questions
7
questions
1
vote
3
answers
116
views
How to know initial jumping velocity if I know trajectory as parabola equation and gravity value?
I have a parabola equation $y = ax^2 + bx + c$ with vertex at (vertexX, vertexY)) which draws the object's moving trajectory (from point $A(0;0)$ to $B(X;Y)$). Also, I have a gravity vector ($G(0;-g)$)...
- 768
0
votes
5
answers
123
views
Vertical motion under gravity
If we project an object vertically under gravity it travels vertically upwards until vertical velocity zero, why is that? Why does the velocity become zero?
- 21
1
vote
1
answer
463
views
How to determine where an object will land on a variable elevation surface?
I'm making a game and I need to figure out the exact point on a hilly surface where the car will land after the jump.
Here is an image:
So since this is a game, it's very easy for me to figure out ...
- 13
1
vote
1
answer
779
views
How far will the bullet travel before falling back to earth? [closed]
First, the question:
A particular high performance rifle cartridge can be fired with a muzzle velocity of 1200 meters per second. The rifle is pointed straight up. Assuming there is no air ...
- 115
0
votes
3
answers
6k
views
Deceleration of a bullet [closed]
Taking into account gravity, air resistance, and wind velocity and direction. (And also temperature if it's actually relevant.) I know the muzzle velocity, the total distance the bullet traveled, its ...
- 35
0
votes
3
answers
3k
views
Finding velocity from distance and gravity
Basically, I have a problem that asks:
An object is launched to a height of 2 miles, what was it's initial speed and time.
Now normally something like this would be fairly basic. The problem ...
- 1
13
votes
2
answers
17k
views
If starting speed is faster than terminal velocity then what?
If an object is say thrown down (vertically) at an initial speed that is faster than its terminal velocity, what would happen to that objects speed? Would it slow down?
- 189