Q&A for How to Find Net Force

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  • Question
    Can a weight be negative?
    Community Answer
    It depends. Weight should be the mass multiplied by gravity. If gravity is represented as pointing downwards, it can sometimes be written in a vector form as a negative number, and then you would get a negative weight. However, mass can't be negative, and weight can only be in a negative direction.
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  • Question
    How to find the vertical and horizontal force when only given an angle?
    Startrekker
    Community Answer
    If given force is F and it is at an angle x with the x-axis. Take its x component as F cosx. Its y component is F sinx.
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  • Question
    What is the net force of a car with 1500 kg mass and an acceleration of 2.0 m/s?
    I_l1ke_gam3s
    Community Answer
    F = ma. The mass is 1500, and the acceleration is 2. (1500)(2) = 3000 Newtons.
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  • Question
    A net force of 98 newtons acts on a box which has a mass of 17 kg. What will be the acceleration of the box?
    I_l1ke_gam3s
    Community Answer
    F = ma. The total force is 98, and the mass is 17. Now you have 98 = 17a. Divide both sides by 17. The answer is approximately 5.8 kg.
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