Tolong di jawab besok di kumpul plisss

2][
μ = (m2 / m1) tan 37°
μ = (3/10) • ¾
μ = 9/40 = 0,225 ← jwb ✓

(2)
W2 / sin (90°+37°) = Fges / sin (90°+53°)
W2 / cos 37° = Fges / cos 53°
W2 / cos 37° = Fges / sin 37°
Fges = W2 . sin 37°/cos 37°
Fges = 30 . (0,6/0,8)
Fges = 22,5 Newton

Fges = μ. N
Fges = μ . m1.g
22,5 = μ . 100
μ = 22,5 / 100
μ = 0,225

(3)
Pa = Pb

hukum bernoulli
Pa + 1/2.ρ.va^2 + ρgha = Pb + 1/2.ρ.vb^2 + ρghb
1/2.ρ.vb^2 = 1/2 .ρ.va^2 + ρgha - ρghb
1/2.ρ.vb^2 = ρ (1/2.va^2 + gha - ghb)
1/2.vb^2 = 1/2.va^2 + g(ha-hb)
1/2. vb^2 = 1/2. 6^2 + 10.(0,7 - 1,25)
1/2 . vb^2 = 18 - 5,5
vb^2 = 12,5 × 2
vb^2 = 25
vb = 5 m/s