The displacement, s metres, of a moving particle after t seconds is given by
![displacement of a moving particle](https://www.easyelimu.com/images/form_4_past_papers/Term_3_2021/displacement_of__a_moving_particle.PNG)
Determine the:
- velocity of the particle when t = 5:
- time, t seconds, when the particle is momentarily at rest;
- displacement, s metres, when the particle is momentarily at rest;
- acceleration of the particle when t = 4 seconds.