A boy slides a book across the floor, using a force of 5 N over a distance of 2 m. What is the kinetic energy of the book after he sli

Question

A boy slides a book across the floor, using a force of 5 N over a distance of 2
m. What is the kinetic energy of the book after he slides it? Assume there is
no friction
O A. 20 j
O B. 2.5 j
O c. 5 j
O D. 10 j

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Adela 3 years 2021-08-26T12:42:19+00:00 2 Answers 0 views 0

Answers ( )

  1. Latifah
    0
    2021-08-26T12:43:30+00:00
    Reply

    Answer: D. 10 J

    Explanation: Work is equal to the product of force and distance. Work is equal to energy. So the value for work is equal to energy.

    W = Fd

    = 5N ( 2 m )

    = 10 J

  2. dangkhoa
    0
    2021-08-26T12:43:50+00:00
    Reply

    Ek = force x distance
    Ek = 5 x 2
    Kinetic energy = 10 joules

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