Self Exercise 8.1 Question 2

A particle moves along a straight line and passes through a fixed point O. Its velocity, v ms-1 ,is given by , where t is the time in seconds after passing through O.
(a) Find the instantaneous velocity, in ms-1, of the particle when
(b) Calculate the values of t, in seconds, when the particle stops instanteneously.
(c) Determine the range of values of t, in seconds, when the paticle moves to the left.