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MetroMattums

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Haven't learnt inverse trig functions..
But it might be right.

-2(root[1-x^2])
Whoops haha it simplifies to that.

The first thing you have to do is get the parametric function:

x = cosø
dx/dt = -(dø/dt)sinø
dx/dt = -(dø/dt)√(1-x^2)

Then you have to work out dø/dt, which is angular velocity.

Given tangential velocity = 2 m/s
Period T = (2π)/2 = π

But you know angular velocity w = 2π/T
So w = 2π/π = 2 = dø/dt

ie. dx/dt = -2√(1-x^2)
 
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