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The displacement,s metres,of a moving particle after t secs is given by `S =2t^3 -5t^2 + 4t +2`
Determine :
a)The velocity of the particle when t=3 seconds
b)The value of t when the particle is momentarily at rest.
c).The displacement when the particle is momentarily at rest.
d).The acceleration of the particle when t=3 seconds.