2-D Kinematics

Question 1

When do you use formulas again?

Answer 1

*Only If the accel is constant

Question 2

How to get the 3-D component

Answer 2

sqrt(x^2 + y^2 + z^2)

Question 3

What are the Cartesian Components?

Answer 3

(Ax, Ay, Az)

Question 4

What are the spherical components?

Answer 4

(A, theta, theta)

Question 5

What are the formulas for the x direction?

Answer 5

Ax = 0
Vx = Vox
X = Xo + VoT

Question 6

What are formulas for the y direction?

Answer 6

Ay = -g
Vy = Voy - gT
Y = Yo + VoyT - (1/2)gT^2

*Accel only in y dir

Question 7

Formula for horizontal range

Answer 7

Time in air = (Voy•T - 4.9•T^2)

Max Range = Vo^2/g

Just range = (Time in air) • Vox

Question 8

When dealing with different dimensions, how do you approach wash problem?

Answer 8

Match it up with corresponding like
Vx = Vox + AxT
Vy = Voy + AyT
… Cartesian components

Question 9

How to find the missing Vo (min)?

Answer 9

Plug in values for
Y = Yo + VoyT + (1/2)gT^2
But get T from
X = VoxT and plug it in for T

Question 10

How to find the missing Vo (min)?

Answer 10

Plug in values for
Y = Yo + VoyT + (1/2)gT^2
But get T from
X = VoxT and plug it in for T