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22 January, 18:02

Julie is cycling at a speed of 3.4 meters/second. If the combined mass of the bicycle and Julie is 30 kilograms, what is the kinetic energy?

A.

1.7 * 102 joules

B.

1.5 * 102 joules

C.

2.0 * 102 joules

D.

2.2 * 102 joules

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Answers (1)
  1. 22 January, 20:15
    0
    A

    Explanation:

    KE = 1/2 mv^2

    =1/2 (30kg) (3.4 m/s) ^2

    =173.4 joules

    =1.7*10^2 joules
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