Question

. A particle moves along the x axis. Its position is given by the equation with x in meters and t in seconds. Determine

(a) its position at the instant it changes direction and
(b) its velocity when it returns to the position it had at t = 0.

Answer 1

In the question there is supposed to be an equation in the space right after the word 'equation'. The questions refer to that equation and we can't answer them without it.