Aroller coaster car rapidly picksup seed as it rolls down a slope. as it starts down its speed is 4m/s. 3 seconds later its speed is 22 m/s. what is its average acceleration

Change in speed  = (end speed) - (start speed)

                             =    (22 m/s)    -   (4 m/s)   =   18 m/s .

Magnitude of average acceleration =

                         (change in speed) / (time for the change) .

                     =                (18 m/s)  /  (3 sec)  =  6 m/s² .

That's about 0.61 G.
If you weigh 150 pounds, then you would feel as if there's
a force of 92 pounds pushing you back against the seat !

Oh, her eyes, her eyes

Make the stars look like they're not shinin'

Her hair, her hair

Falls perfectly without her tryin'

She's so beautiful and I tell her everyday

Yeah, I know, I know

When I compliment her, she won't believe me

And it's so, it's so

Sad to think that she don't see what I see

But every time she asks me, "Do I look okay?"

I say

When I see your face

There's not a thing that I would change

'Cause you're amazing

Just the way you are

And when you smile

The whole world stops and stares for a while

'Cause girl, you're amazing

Just the way you are

Yeah

Her lips, her lips

I could kiss them all day if she'd let me

Her laugh, her laugh

She hates, but I think it's so se.xy

She's so beautiful and I tell her everyday

Oh, you know, you know

You know I'd never ask you to change

If perfect's what you're searchin' for, then just stay the same

So don't even bother askin' if you look okay

You know I'll say

When I see your face

There's not a thing that I would change

'Cause you're amazing

Just the way you are

And when you smile

The whole world stops and stares for a while

'Cause girl, you're amazing

Just the way you are

The way you are

The way you are

Girl, you're amazing

Just the way you are

When I see your face

There's not a thing that I would change

'Cause you're amazing

Just the way you are

And when you smile

The whole world stops and stares for a while

'Cause girl, you're amazing

Just the way you are

Yeah

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