Physics help needed?

Question

Hi everyone,
This is a physics concerptual question, if anyone could help that would be great.
Decribe the motion of an object that is initially traveling with a constant velocity and then receives an acceleration of constant magnitude a)in a direction parallel to the initial velocity, b) in a direction perpendicula to the initial velocity and c) that is always perpendicular to the instantaneous velocity or direction of motion.
Please help, i dont even understand the question??

Answer 1

In (a) you are headed north and have wind either in your face or from behind. So, you either speed up or slow down, but your direction is uncharged. In (b) you are headed north and there is a constant wind from the east. Blows you sideways and with a lot of time you will be headed mostly west. In (c) you have flown into a cyclone or tornado and no matter which direction you are headed the wind is from the side. You go in circles. All this assumes you are a duck.