2D Motion

Question 1

What is the equation for trajectory?

Answer 1

y=-1/2g(x/v)^2 or

y=-1/2gt^2 and x=vt

Question 2

Are the x- and y-components dependent on each other?

Answer 2

No, they both act independently in their own vectors

Question 3

For projectile motion, is horizontal velocity linear, quadratic or constant?

Answer 3

Constant

x=vt

Question 4

For a projectile motion, is the vertical velocity linear, quadratic, or constant?

Answer 4

Quadratic

y=-1/2gt^2

Question 5

What is Relative Velocity?

Answer 5

Resultant of two vectors of velocity

Question 6

When a ball is projected, will its velocity ever reach zero?

Answer 6

Yes, at its highest point

Question 7

What will a projectile motion look like on a v vs t graph?

Answer 7

Straight line going down in the negative direction (ie. y=-x)

Question 8

For projectile motion, where is the highest point plotted on a v vs t graph?

Answer 8

Where the graph intersects the x-axis; y=0

Question 9

For projectile motion, where is the upward motion on a v vs t graph? (+/-)

Answer 9

When y is greater than 0; before the graph intersects the x-axis

Question 10

For projectile motion, where is the downward motion on a v vs t graph? (+/-)

Answer 10

When y is less than 0; after the graph intersects the x-axis

Question 11

At what angle will maximum range be reached?

Answer 11

45 degrees

Question 12

What is Frequency?

Answer 12

Number of revolutions per second

Question 13

What is Centripetal Acceleration?

Answer 13

Acceleration toward the center

Question 14

What is the equation for frequency?

Answer 14

f=1/T

Question 15

What is the equation for centripetal acceleration?

Answer 15

a=v^2/r

a=4π^2r/T^2