tolong dengan caranya ya..

tekanan minimal = luas penampang yg paling besar

A = 60 × 40
= 2400 cm² = 0.24 m

g = 10 m/s²
m = 3 kg

dit. Tekanan minimal?

F = m.g
3.10
F = 30 kg m/s²

tekanan minimal/P = F/A
30/0.24 = 3000/24 = 125 N/m² (a)