A particle moving in a straight line has displacement $s$ metres from a fixed point $O$, at time

Question

A particle moving in a straight line has displacement $s$ metres from a fixed point $O$, at time $t$ seconds after the motion begins, given by the formula $s = 2 \cos \left( \frac{\pi t}{4} \right)$. Find: The velocity, in m/s, of the particle when $t=4$ The acceleration of the particle when $t=2$

Accepted Answer

(a) $0\text{ m/s}$ (b) $0\text{ m/s}^2$

Kinematics - Differentiating Displacement and Velocity

Kinematics - Differentiating Displacement and Velocity

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