Question

ajuda
quem souber alguma responde por favor

Answer 1

12) F = m x a
F = 0.8 x 3
F = 2,4 N

13) F = m x a
F = 4500 x 2
F = 9000 N

14) F = m x a
8 = 4 x a
a = 8 ÷ 4
a = 2 m/s²

15) F = m x a
400 = m x 2
m = 400 ÷ 2
m = 200 Kg

16) F = m x a
F = 3 x 4
F = 12 N

A = ΔV ÷ ΔT
A = 20 ÷ 5
A = 4 m/s²

17) A = (v2-v1) ÷ t
A = (40-20) ÷ 5
A = 20 ÷ 5
A = 4 m/s²

F = m x a
F = 1 x 4
F = 4 N

18)F = m x a
20 = 2 x a
a = 20 ÷ 2
a = 10 m/s²

A = v ÷ t
10 = v ÷ 10
v = 10 ÷ 10
v = 1 m/s

19) V = ΔS ÷ Δt
6 = 52 ÷ Δt
Δt = 6 ÷ 52
Δt = 0.11 s

A = Δv ÷ Δt.
A = 6 ÷ 0.11
A = 54,54 m/s²

F = m x a
F = 2 x 54,54
F= 109.08 N

20) V = ΔS ÷ Δt
20 = 50 ÷ Δt
Δt = 20 ÷ 50
Δt = 0.4s

A = Δv ÷ Δt.
A = 20 ÷ 0.4s
A = 50 m/s²

F = m x a
F = 1000 x 50
F= 50.000 N

21) V = ΔS ÷ Δt
V = 32 ÷ 4
V = 8 m/s

A = Δv ÷ Δt
A = 8 ÷ 4
A = 2 m/s²

F = m x a
F = 7 x 2
F = 14 N

22) F = m x a
20= 5 x a
a = 20 ÷ 5
a = 4 m/s²

+Espero ter ajudado+