Gabarito Lista de Exercicios sobre MRUV - Fisica Instrumental A - Parte I

1) (a) 0,75m (b) 3m (c) 18,75 (d) 48m

2) (a) -10m/s (b) 25m (tanto em t=1s, como em t=5s) (c) 1,27s e 4,73s (d) 45m (e)6s.

3) (a) 6,94m/s²; (b)55,56m (c) 13,89m

4) (a) x(t)  = 500 +4.t + 0,25.t² (b) x(t) = 1200 - 2.t -0,5.t² (c) v(t) = 4+0,5.t (d) v(t) = 2 +1.t
(e) Yasmim x(t) =514,25m  Luiza x(t) = 1.189,5m (f) Yasmim x(t) =520m ; Luiza x(t) =1.184m
(g) 26,81s (h)47,03s

5) (a) 89,4m/s (b)8,94s (c)4,47s (d)1,20s

6) (a)112,5m (b)7,5s (c)7,5m/s²

7) (a) x(t) = 0,75.t² ; (b)x(t) = -40 + 25.t (c) 1,685s (d) 31,65s  (e) 10,95m/s

8)  (a) 20m; 30m/s; -8m/s² (b)150m; -20m/s; 5m/s² (c) 76,25 (d) 110m (e) Eles não se cruzam.
(f) 8,11s. (g) t=3,85s.; 76,21m - corpo A; corpo B - 110,06