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26 September, 10:06

A 0.125 kg frozen hamburger patty has two forces acting on it that determine its horizontal motion. A 2.30 N force pushes it to the left, and a. 800 N force pushes it to the right. (a) taking right to be positive, what is the net force acting on it. (b) what is its acceleration

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  1. 26 September, 11:45
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    The net force simply the sum of two forces:

    Negative and positive are assigned to those forces to show direction because it is a vector.

    So, given that left is negative and right is positive;

    a)

    2.30N -.800N = 1.50 N

    Given the equation F = ma, where m = 0.125 (mass) and F = 1.50 (force), we can solve for a (acceleration).

    b)

    1.50 N = (0.125 kg) a

    a = 12.0 ms^-2
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