2. Forma Polar: Escala: 5mm= 20m/s
K=(170m/s;220°) 0,5 cm

3. |K|= 170m/s
ɵ= 220 K= (Kxi – Kyj) m/s
Kx=? K= (-130,23i – 109,27j)
Ky=? m/s
RESOLUCIÓN
Kx= K•cosɵ
Ky= K•senɵ
Kx= 170•cos220 K= (|K| m/s ; SɵO)
Ky=170•sen220 K= (170 m/s ; S 50 O)
Kx= -130,23m/s
Ky= -109,27 m/s
K= (-130,23; -109,27) m/s

4. UK= K/K, UK= -130,23i – K= 170m/s (cos140i +
109,27j 170 cos130j)
UK= -0,77i – 0,64j
α= Cos-1 (Kx/K)
α= Cos-1 (-130,23/170)
K= 170m/s (-0,77i – 0,64j) α= 140
β= Cos-1 (Ky/K)
β= Cos-1 (-109,27/170)
β= 129,99