The normal force of the passenger cars is 11,760 N.
The normal force of the trucks is 352,800 N.
The normal force of an object is the upward force of the object due to its weight acting downwards.
The normal force of the passenger cars is calculated as follows
Fₙ = mg
Fₙ = 1200 x 9.8
Fₙ = 11,760 N
The normal force of the trucks is calculated as follows;
Fₙ = mg
Fₙ = 36,000 x 9.8
Fₙ = 352,800 N
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