Alana is skateboarding at 19 km/h and throws a tennis ball at 11 km/h to her friend Oliver who is behind her leaning against a wall. What is

Question

Alana is skateboarding at 19 km/h and throws a tennis ball at 11 km/h to her friend Oliver who is behind her leaning against a wall. What is the speed of the tennis ball if someone was watching the exchange on the sidewalk?

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Xavia 3 days 2021-07-19T21:27:55+00:00 2 Answers 2 views 0

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    0
    2021-07-19T21:29:03+00:00

    Answer:

    a on edge

    Explanation:

    0
    2021-07-19T21:29:06+00:00

    Answer:

    It is 8km/hr.

    Explanation:

    I just took the test, 11km/hr is wrong.

    Edg2020

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