Problem 141 25 m 35 m Two crates each of weight 7 kN are pla

Problem 14.1 -2.5 m 3.5 m Two crates, each of weight 7 kN, are placed as shown in the bed of a 18 kN pickup truck. Determine the reactions at each of the two (a) rear wheels A, (b) front wheels B 2.4 m 1.8 m 1.0 m

Solution

Solution:-

Given

Crates weight = 7 kN

Pickup truck weight = 18 kN

(a) rear wheel reaction at A

M_B = 0

7*10³*5 + 7*10³*2.5 + 18*10³ *1.8 – 2 F_A*4.2 = 0

F_A = 10.107 kN Answer

(b) front wheel (B) reaction

M_A = 0

2F_B*4.2 – 18*10³*2.4 – 7*10³*1.7 + 7*10³*0.8 = 0

F_B = 5.892 kN Answer