Examen!!!!

Solución:

1. ---------------------------------------------------------
V=f-0 v=f-0 llAll2= (7)2 + (-10)2= 12.206

7=f-3 -10=f-(-5) α= tg-1 (-10/7)= -55.007+360=304.992º

F=10 f=-15



2. ----------------------------------------------------------



V=f-0 v=f-0 llAll2= (4)2 + (-3)2= 5

4=-3-0 -3 = 2 – 0 α= tg-1 (-3/4)= -36.86+360=323.13

0=7 0= -5

3. -----------------------------------------------------------

llAll2= 52=25-1= 24 =4.89-8=3.101

α= tg-1 (4.89/1)= 78.44º