About how fast will it be traveling on average? Assume that its trajectory is close to a straight line. Give your answer in {\rm AU/yr} and in {\rm km/hr}.

What is "it"? Earth does not travel in a straight line.

To determine the average speed of any object, we need two pieces of information: the distance traveled and the time taken. Since we are assuming the trajectory of the object is close to a straight line, we can estimate the distance traveled by simply subtracting the initial distance from the final distance.

To calculate the average speed in astronomical units per year (AU/yr), we divide the distance traveled in astronomical units by the time taken in years. Similarly, to calculate the average speed in kilometers per hour (km/hr), we divide the distance traveled in kilometers by the time taken in hours.

Unfortunately, you haven't provided any specific values or context regarding the object or its trajectory. Therefore, I cannot give you an exact answer. However, I can guide you through the process of calculating the average speed if you have the necessary information.