Projectile Motion/Two dimensional

Question 1

what is projectile motion?

Answer 1

launching something in the air w/o anything acting on it except gravity

Question 2

anything thrown will make what shape?

what are the two things we can look for?

Answer 2

1) parabolic shape

2) we can look for how far did It go vertical = y and horizontally = x

Question 3

things when looking for horizontal = x
(basically what’s the acceleration)
how many variables are needed?

Answer 3

1) x = distance
2) acceleration of x = 0
3) time
4) velocity (vi,vf)
5) angle Θ
(need 3 variables Θ doesn’t count)

Question 4

things when looking for vertical = y
(basically what’s the acceleration)
how many variables are needed?

Answer 4

1) y = distance
2) acceleration of y = -9.8
3) Time
4) velocity
5) angle Θ
(need 3 variables Θ doesn’t count)

Question 5

looking for x distance formula -

looking for y distance formula -

Answer 5

1) x = vi cos Θ t

2) y = vi sin Θ t 1/2 a t^2

Question 6

when pulling vertically what’s being wasted?

Answer 6

energy pulling it vertically b/c the only way the object is moving when pulled vertically is horizontally

Question 7

What drags you down

Angle

Answer 7

Mg-sin-Θ

Question 8

In hill

Down hill

Answer 8

In = mg-cos
Down = mg-sin

Question 9

Displacement

Magnitude of Disolacemnet

Answer 9

Θ and direction

Just direction