Tolong jawab pake cara dong. Kalau boleh sekalian sama nomor 20, hehe.

21][
m = 10 kg
F = 20 N
Vo = 5 m/s
t = 4 s
Vt = __?

percepatan
F = m a
20 = 10 a
a = 2 m/s²

kecepatan saat t
Vt = Vo + a t
Vt = 5 + 2 • 4
Vt = 5 + 8
Vt = 13 m/s ✔️