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10 April, 00:41

A grocery sack can withstand a maximum of 230 N before it rips. What is the bags force when holding 15 kg of groceries and that is lifted from the counter at an acceleration of 7.0 m/s^2 hold?

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  1. 10 April, 01:05
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    Answer: 42.15N

    Explanation:

    Threshold force is 230N

    Force or weight = mg

    Where m = mass of object and g is the acceleration due to gravity

    Mass of object it holds = 15kg

    g = 9.81m/s^2

    a = 7m/s^2

    Because a is acceleration against gravity

    Minimum force applied to lift the bag = (15 * (-7)) kgms^2

    = - 105N

    Force of gravity, i. e its weight

    = (15 * 9.81) N

    = 147.15N

    Net force acting on the bag from above =

    (147.15 + (-105)) N

    = 42.15N
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