Respuesta :

0 Newtons

Explanation

Step 1

given

[tex]\begin{gathered} mass=2\text{ kg} \\ \text{ v cte= zero acceleration, so} \\ a=0 \\ v=8.4\text{ }\frac{m}{s} \end{gathered}[/tex]

A body remains in the state of rest or uniform motion in a straight line unless and until an external force acts on it

it means if the speed is constant, the accelation is zero

hence

a=0

according to the inertia property If there is no external force acting on the body

so, the answer is

0 newtons

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