Which of the following forces act on the block parallel to the incline? For each force, make sure that the algebraic form of the force is correct. Hint: this problem will be easier if you draw separate force diagrams in your lab notebook, one for the forces parallel to the block, and another for the forces perpendicular to the block. The force of gravity: Fg = mg cos 0 The friction Force: Fs ≤ μsmg sin The Tension in the string: T= mg sin 0 - Fs The force of gravity: Fg,|| = mg sin 0 The friction Force: Fs,mg cos The Normal Force: N = mg cos 0

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: