Physics
posted by Piper .
Carlo drives his car for a picnic by first going 105 km north to pick up his girlfriend and then 120.0 km east to reach the picnic groove. The whole trip takes 135 min. Calculate (a) Carlo’s average speed and (b) average velocity.

135 min = 2.3 hr
speed = (1/2.3) sqrt (105^2+120^2) km/hr
velocity = speed at angle tan^1(120/105) east of north
Respond to this Question
Similar Questions

physics
A commuting student leaves home and drives to school at an average speed of 41.0 km/h. After 24.0 min she realizes that she has forgotten her homework and returns home to get it at the same average speed. It takes 9.0 min to find the … 
physics
Sally travels by car from one city to another. She drives for 30.0 min at 80 km/h, 12 min at 105 km/h, and 45 min at 40 km/h. She spends 13.0 min eating lunch and buying gas. what the average speed for the trip? 
physics
A commuting student leaves home and drives to school at an average speed of 42.0 km/h. After 22.0 min he realizes that he has forgotten his homework and returns home to get it at the same average speed. It takes 8.0 min to find the … 
Physics
Sally travels by car from one city to another. She drives for 40.2 min at 80.0 km/h, 12.0 min at 105 km/h, and 45.0 min at 40.0 km/h. She spends 13.7 min eating lunch and buying gas. (a) Determine the total distance traveled in km. … 
Physics
A truck travels 2.85 km north and then makes a 90° left turn and drives another 4.90 km. The whole trip takes 4.50 min. (a) With respect to a twodimensional coordinate system on the surface of Earth such that the yaxis points north, … 
Physics
Could someone please review my answers and tell me if I am on the right track? 
physics
A commuting student leaves home and drives to school at an average speed of 42.0 km/h. After 20.0 min he realizes that he has forgotten his homework and returns home to get it at the same average speed. It takes 7.0 min to find the … 
Physics
1. A person runs 800. m at an average speed of 6.00 m/s and then the next 800. m at an average speed of 8.00 m/s. Calculate (a) the total time of travel and (b) the average speed. 2. Sam travels by car from one city to another. He … 
Physics
1. A car undergoes a displacement of 500m due east, followed by another displacement due south of 1200m. a)Calculate the total distance traversed by the car d1+d2=total distance 500+1200=1700m b) Calculate the total displacement of … 
Physics
You drive 109 km/h east for 31 min , then 82 km/h north for 42 min . Let the +xaxis point east and the +yaxis north. A)Find your average velocity for the entire trip. B)Find your average speed for the entire trip. You should probably …