1. ## halp

(Cambridge Mathematics HSC 2U)
5C
(3) A particle is moving with acceleration function a = 8. Two seconds after time zero, it is stationary at the origin.
(a) Integrate to find the velocity function.
(b) Integrate again to find the displacement function.

so like I got (a), velocity is 8t-16, but idk how to get the constant for (b)

2. ## Re: halp

Originally Posted by sodiumziha
Two seconds after time zero, it is stationary at the origin.
This means that when $t=2;\,v=0,\,x=0$.

Your integral of velocity will be

$x =4t^2-16t+C$

Knowing that the particle is at the origin after two seconds, you can work out the constant.

3. ## Re: halp

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