very easy projectile question (1 Viewer)

[radio-waves]

hey guys whats the formulas for projectiles again. I did my hsc last year and i forgot them and now i need them..

I need the formula to find the max height a particle going in projectile motion thanks

 

[annabackwards]

Where t is half the time of the projectile's entire flight.

 

[radio-waves]

are you sure thats the answer, because i remember it having a sin@ in it..

the place is when the particle reaches its MAX point on the graph i.e stationary point.

I'm trying to find the height of that i.e i need the time + the distance from base to max height ?

 

[annabackwards]

BAHA sorry, i thought i was in the physics forum XD

It should be Max Height = V²sin²x/2g

 

[radio-waves]

is that sin2x or just sin^2x ???

i think sin2x cuz 2(45) = 90 therefore max height reached xD

 

[lolokay]

it's squared. the angle for maximum height would be straight up, ie. 90'

it just comes from v² - u² = 2as (setting v=0)

 

[radio-waves]

can u also give me all the other formulas eg the time it takes to hit the ground also.. thanks