A block with a mass of 15 kg slides down a 43° incline as shown above with an acceleration of 3 m/s2. The magnitude of the frictional force along the plane is nearly:More resources including presentations, homework, labs, and assessments for AP Physics B are available on the NJCTL site at: www.njctl.org/courses/science/ap-physics-bFree, Digital, open-source curriculum materials for all K-12 Mathematics and High School Science courses can be found on www.njctl.org
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