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3 October, 10:01

How much kinetic energy does a 4.50kg block with a speed of 5.00m/s have?

O

11.23

28.13

5.62)

56.23

+5
Answers (1)
  1. 3 October, 10:28
    0
    56.25J

    Explanation:

    Kinetic energy = 1/2 mv^2

    Where m = mass

    v = velocity

    Given m = 4.50kg

    v = 5.00m/s

    Kinetic energy = 1/2 x 4.50 x (5.00) ^2

    = 1/2 x 4.50 x (5.00 x 5.00)

    = 1/2 x 4.50 x 25

    Multiply through

    = 112.5/2

    = 56.25J
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