the particle's direction of motion is determined by the sign of its velocity. velocity is the time derivative of position ...
so basically you find at what times the velocity is equal to zero... but then what? Don't you have to look at a graph then to see if the time between those two points is below/above the x-axis?
so basically you find at what times the velocity is equal to zero... but then what? Don't you have to look at a graph then to see if the time between those two points is below/above the x-axis?
you check the sign of the velocity for any time between the specific times it is zero ... it has to be either positive or negative for all times in that interval, correct?
you check the sign of the velocity for any time between the specific times it is zero ... it has to be either positive or negative for all times in that interval, correct?