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Donna can cycle at 30 km/h when there is no wind. If there is a 10 km/h wind behind her, how fast can she cycle?

Education & Reference by Anonymous 2018-06-24 20:10:29

Social Science

Donna can cycle at 30 km/h when there is no wind. If there is a 10 km/h wind behind her, how fast can she cycle?

3 answers

a. 20 km/h b. 30 km/h c. 40 km/h d. 300 km/h

  • Anonymous

    c

  • Anonymous

    She is bicycling with the wind, so her speed is 30+10 = 40 km/h

  • Anonymous

    b ground friction Also does donna have a sail?

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