Question

Why truck tyres are wider?

Answer 1

the shorter and wider a tire is , the better the cornering and handling it includes ability to accelerate and stopping power it influences it's stability

Answer 2

$heya: mate$

As we know that

$Pressure=force/area$

so tyres of truck are wider so as to increase
$\underline{Surface:area}$ and decrease the $Pressure$ exerted on road from the load above truck