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The position function is .
(a)
Find velocity .
.
Apply derivative on each side with respect to .
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The velocity is .
Find acceleration .
.
.
The acceleration is .
(b)
Find the open -intervals.
Equate .
and .
and .
The open -intervals are and .
(c)
Find value of .
Equate .
.
Find velocity of the particle when the acceleration is zero.
Substitute in .
.
The velocity of the particle when the acceleration is zero is .
(a) Velocity: and acceleration: .
(b) Open -intervals : and .
(c) The velocity of the particle when the acceleration is zero is .
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