Respuesta :

Answer:

5.4m/s

Explanation:

Given parameters:

Distance  = 43m

Time  = 7.9s

Unknown:

Speed  = ?

Solution:

Speed is mathematically expressed as;

     Speed  = [tex]\frac{distance}{time }[/tex]  

Insert the parameters and solve;

   Speed  = [tex]\frac{43}{7.9}[/tex]   = 5.4m/s