1. A kangaroo hops 84 m to the east in 7 seconds. o What is the kangaroo's speed? 12 m/s
o What is the kangaroo's velocity?

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  =   =  = 12m/s

  Velocity  =   =   = 12m/s due east

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explanation:

the closer the planet is to the sun, the larger the gravity