Answers to WIR week1  1.1,1.2

 

  1. Q(9,-2)

 

      2.

 

3. m= -0.2, n= -1.6

 

4. speed is about 22.22 mph  at N50W

 

5.  at S70E

 

6. 1

 

7. about

 

8. -0.196

 

9. -0.4 and  

 

10. Using 5 miles is about 8049 meters, the work done is 69706 J.

 

11.