benda yg beratnya 50 N bergerak mendatang karena gaya 90 N, bila benda semula diam. tentukan percepatan benda???

DINAMIKA
• gaya

F = 90 N, α = 30°
w = 50 N
a = __?

massa benda
w = m g
50 = m • 10
m = 5 kg

percepatan
ΣF = m a
F cos α = m a
90 cos 30° = 5 • a
90 • ½√3 = 5 a
45√3 = 5 a
a = 9√3 m/s² ✓

percepatan benda 9√3 m/s².