Answer:
In
applying brakes, suppose \[{{\text{F}}_{\text{B}}}\] is the force required to
stop the truck in distance (d)
\[\therefore \] \[{{\text{F}}_{\text{B}}}\times
\text{d }=~\frac{1}{2}\text{m}{{\upsilon }^{\text{2}}}\] or \[{{\text{F}}_{\text{B}}}=\frac{m{{v}^{2}}}{2d}\]
In taking a
turn of radius d, the force required is \[{{\text{F}}_{\text{T}}}=\frac{m{{\upsilon
}^{2}}}{d}=\text{2}{{\text{F}}_{\text{B}}}\]or \[{{\text{F}}_{\text{B}}}=\frac{1}{2}{{\text{F}}_{\text{T}}}\]
Hence it is
better to apply brakes.
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