A hammer has a mass of 1.7kg. How much does it weigh?


  1. Answer:

    17 N


    Weight is a force. The equation to calculate a force is:


    where a is the acceleration of the object. On an object simply existing, the force of gravity adds an acceleration of 9.8m/s², or approximately 10m/s². So, to calculate the force of weight, we simply multiply the mass by 10 for that reason:

    F_w = 1.7(10) = 17N

    Forces are measured in Newtons (N) so the answer is 17 N.

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