AS Mechanics help

[manic dome]

do s=ut + 0.5at^2 for both of them

then equate

[keen adder]

Make 2 quadratic equations

[manic dome]

wow

ur so smart

[keen adder]

Just do then the queshtion it’ll be fine😳

[keen adder]

There’s a trick to it though

[humble galleon]

why 0.5?

[manic dome]

🤔

[keen adder]

That’s the formula

[humble galleon]

oh shit nvm

yh but what are the values for each

so for A

[keen adder]

Do you know the answer

I got an and

Answer

[humble galleon]

u=2
a=-9.8
t=T

what else

[manic dome]

nothing else

s=s

[humble galleon]

let me check

[keen adder]

I did it in the dark

Hopefully I didn’t mess up

[keen adder]

There’s a trick to why some will get it wrong

[humble galleon]

T=2.8

[keen adder]

I got 2.7 recurring

Close enough

[manic dome]

why are you telling me this

[keen adder]

Solve it and see if you get 2.8

[manic dome]

effort

[keen adder]

You’re yr11 I wanna see if you got what it takes

[manic dome]

fine

[keen adder]

Bring you’re friend here aswell

Kitten dude

[humble galleon]

so for A the eqn is S=2t-4.9t^2?

[keen adder]

Yeha and for B what is it

But you’re missing something

[humble galleon]

S= 20t+4.9t^2?

[keen adder]

That’s correct

[humble galleon]

make the eqn equal to each other

[keen adder]

For A the ball starts 50 m higher

So what will the y intercept be

[humble galleon]

50

[keen adder]

When t = 0

Yeha so it’s 2t -4.9t^2 + 50

[humble galleon]

ohhhh

igy

[keen adder]

and the value of h should be easy

[manic dome]

yes T=2.8

[manic dome]

why

[keen adder]

Let’s go..

[humble galleon]

just sub in T to any eqn?

[keen adder]

Yeah