The momentum is given by:
[tex]p=mv[/tex]
Then the momentum of the car is:
[tex]\begin{gathered} p=(1420)(1) \\ p=1420 \end{gathered}[/tex]
If the biker has the same momentum then:
[tex]\begin{gathered} 1420=(114)v \\ v=\frac{1420}{114} \\ v=12.46 \end{gathered}[/tex]
Therefore the velocity of the biker is 12.46 m/s (rounded to two decimals)
