Question

Tolong dijawab soal nomor 10 ini

Answer 1

ΣF = m . a
(F - f) = 2 kg . 4 m/s²
20 N - f = 8 N
f            = 12 N

fk = μk . m . g
12 N = μk . 2 . 10
μk    = 12 / 20
μk    = 0,6 (c)

semoga membantu gan :)