1) x=xo+v∗t V=1200 cmss

; t=9 (s) V = 12 mtss

x=12 mtss

∗9(s) X= 108 m.

2) xo= 4 mts. ; t=15 (s) X=49 mts. x=xo+v∗t

49 m = 4 + v * 15 (s) ; 45m = v * 15 (s) ; v= 3 mtss

3) V = 72 kmshrs

; xo = 15 km X = 60 km; V = 20 mtss

; xo = 15000 m ; X= 60000

m

x=xo+v∗t ; 60000m = 15000m + 20 mtss

* t ; t = 2250 (s)

4) x=xo+v∗t

12 m = 4 m + v * 5 (s)

V = 1,6 mtss

5) x=xo+v∗t

15 m = 3 m + v * 5 (s)

V = 2,4 mtss

6) A) x=v∗t ; 180 = v * 2 ; v = 90 kmshrs

B) ) x=v∗t 800000 m = 25 mtss

*t ; t = 32000 (s)

7) A) x=xo+v∗t ; x1 = x2 ; 6000 m + 15 mtss

* t = 30 mtss

* t

T = 200/ 0,5 ; t = 400 (s)

B) 6 kms = 6000 mts

C) 2 * xo = 12000 m

8) A) x=xo+v∗t ; t = 2000 / 0.5 ; t = 4000 (s)

B) x = 6000 + 15 mtss

* 3600 (s) ; xo = 60000 m

c) 2 * X = 120000 m

9) A) x=xo+v∗t ; 18 mtss

* t = 840 m – 30 mtss

*t ; t = 17,5 (s)

B) x=v∗t ; X = 18 mtss

* 17,5 (s) ; X = 315 m

c) X= 30 mtss

* 17,5 (s) ; X = 515 m

Elias Avila PizarroManuel Bravo Vargas

Seccion 432, inacap maipu.