Anonymous
Anonymous asked in Science & MathematicsPhysics · 4 weeks ago

A student sets out from her room at 9:00 in the morning...?

A student sets out from her room at 9:00 in the morning, and walks 100m to calculus class, than 50m to the library, then 150m to English class, than 200m to lunch, than 60m to the chemistry lab, than 75m to the gym, and finally 85m back to her room, arriving at 3:00pm. which of the following statements is correct?

a)her average speed is 0 meters per hour

b)her average velocity is 120m per hour

c)her net displacement is 720m

d)choices a, b, and c are all correct

e)none of the choices a, b, and c are correct.

1 Answer

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  • NCS
    Lv 7
    4 weeks ago
    Favorite Answer

    e)none of the choices a, b, and c are correct.

    Her displacement is zero, so her velocity is zero. Her distance was NOT zero, however.

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