A particle moves in a straight line. Its velocity, $$\(v \mathrm{~ms}^{-1}\)$$, at time $$\(t\)$$ seconds is given by $$\[ v=\cos t-\sin t \]$$ Find the acceleration, $$\(a \mathrm{~ms}^{-2}\)$$, when $$\(t=\frac{\pi}{3}\)$$. The displacement of the particle from a fixed point $$\(O\)$$ at time $$\(t\)$$ is $$\(s\)$$ metres. The particle passes through when $$\(t=0\)$$.

Answer:

Knowledge points:

Solution: