science question..please answer quick!

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If a bicycle rider and her bicycle have a mass of 50kg, how much force is needed to provide an accerlation of 0.7m/s (squared)

Force on the tire /pavement:

F= m*a

I don't understand.. ;(

Multiply mass times acceleration to get the force.

  • science question..please answer quick! -

    a molecule having slightly negative and positive ends with regard to change.

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