At time t = π/6, the position x(t) = 10 cos t is given by the following.
x(π/6) = 10 cos π/6

Question

At time t = π/6, the position  x(t) = 10 cos t is given by the following.
x(π/6) = 	10 cos π/6

zepdrix · Answer

Do you have a question Kori? :o

anonymous · Answer

Find the position, velocity, and acceleration of the mass at time t = π/6. In what direction is it moving at that time?

zepdrix · Answer

At time t = π/6, the `position`  x(t) = 10 cos t ...

zepdrix · Answer

So that's our position function, yes?

zepdrix · Answer

Looks like they gave us the position function evaluated at π/6 for free.$$\Large\bf\sf x(\pi/6)\quad=\quad 10\cos(\pi/6)$$

zepdrix · Answer

Velocity function can be found by taking the derivative of the position function.
Have you tried taking the derivative yet? :o

zepdrix · Answer

$$\Large\bf\sf x(t)=10\cos t$$

$$\Large\bf\sf v(t)=x'(t)$$$$\Large\bf\sf x'(t)=?$$