A truck accidentally rolls down a driveway for 8.0\,\text m8.0m8, point, 0, start text, m, end text while a person pushes against the truck

Question

A truck accidentally rolls down a driveway for 8.0\,\text m8.0m8, point, 0, start text, m, end text while a person pushes against the truck with a force of 850\,\text N850N850, start text, N, end text to bring it to a stop. What is the change in kinetic energy for the truck?

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Lệ Thu 5 months 2021-08-15T15:35:10+00:00 2 Answers 25 views 0

Answers ( )

    0
    2021-08-15T15:36:17+00:00

    Answer:

    Explanation:

    According to work energy theorem

    change in kinetic energy of truck = work done against it

    work done against it = force x displacement

    = – 850 x 8 = 6800 J

    change in kinetic energy of truck = – 6800 J .

    energy will be reduced by 6800 J

    0
    2021-08-15T15:36:27+00:00

    Answer:-6800

    Explanation:

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