At the start of your vacation, you drive for four hours and 28 minutes, from your home to a cottage you have rented for a week.
The car odometer says that the trip covered a distance of 178.7 miles. When you check your GPS, however, it tells you that the straight-line distance from your home to the cottage is 123.3 miles. You might find it helpful to know that there are 1.609344 km in a mile. (a) What is your average speed for your trip from your house to the cottage? Express your answer in units of m/s.
__________ m/s
(b) What is the magnitude of your average velocity for your trip from your house to the cottage? Express your answer in units of m/s.