Gravity is g, i.e. leave it symbolic. Always enter explicit multiplication symbols where applicable. Consider the different scenarios described below.
a) [1] The surface between A and B as well as the surface underneath A are both smooth. Express the magnitude of the acceleration of block A in terms of one or more of the following parameters: m, m, and g. a =
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Correct answer, well done. Marks for this submission: 1.00/1.00.
b) The surface underneath A is smooth but the surface between A and B is rough. Answer the questions below.
i) [2] If A is about to move down the incline, express the coefficient of static friction between A and B and the tension in the cable in terms of one or more of the following parameters: m4, m, and g. =
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Incorrect answer. Marks for this submission: 0.00/1.00. This submission incurred a penalty of 0.20.
ii) [2] A is in motion and its coefficients of static and kinetic friction with B are mu_s' and mu_k, respectively. Express the magnitude of the acceleration of block A and tension T in the cable in terms of one or more of the following parameters: mm, g, and 4. =
Incorrect answer. Marks for this submission: 0.00/1.00. This submission incurred a penalty of 0.20.
