Question

Tolong bantu nomor 2 pakai cara :)

Answer 1

Verified answer

a = 2 m/s²
tan θ = ¾
→ sin θ = ⅗
→ cos θ = ⅘
g = 10 m/s²
μₖ = __?

ΣF = m a
m g sin θ - μₖ m g cos θ = m a
g sin θ - μₖ g cos θ = a
10 • ⅗ - μₖ • 10 • ⅘ = 2
6 - 8 μₖ = 2
4 = 8 μₖ
μₖ = ½ ✔️