Respuesta :

quasarJose

Explanation:

Given parameters:

Distance hopped  = 84m

Displacement  = 84m due east

Time  = 7s

Unknown:

Speed of kangaroo  = ?

Velocity of kangaroo  = ?

Solution:

To solve this problem,

    Speed  = [tex]\frac{distance}{time }[/tex]   = [tex]\frac{84}{7}[/tex]  = 12m/s

  Velocity  = [tex]\frac{displacement}{time}[/tex]   = [tex]\frac{84}{7}[/tex]   = 12m/s due east

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