Question

3 problemas para resolver

Answer 1

Respuesta:

8) 18m

9) 4,8m

10) 108 km/h

Explicación paso a paso:

8) tan$\alpha$ = x/12m

12m(3/2) = x

18m = x

9)

cos53º = x/8m

8mcos53º =x

4,8m = x

10)

cot$\alpha$ = x/12

12(2) = x

24 = x

cot$\beta$ = y/12

12(3) = y

36 = y

36 - 24 = 12

v = d/t

v = 12m/0,4seg

v = 30m/seg

30m/seg x $\frac{1km}{1000m}x\frac{3600seg}{1h}= 108km/h$