bantu kerjain nomer 5 dan rumusnya. thanks before☺️

a = f1 - f2 / m
= 50-20 / 5
= 30 / 5
= 6.0 m/s²

a = 2 m/s²
F = 50N - 20N = 30N

m = ?

a = F / m
2 = 30 / m
m = 30 / 2
= 15

lalu ditambah 5. 15 + 5 = 20

a = F / m
= 30N / 20 kg
= 1,5 m/s²