Newton’s 2nd Law Sir Isaac Newton was an intellectual rock star, as well as a stylish dresser (1642-1727) Demo: What does the acceleration of an object.

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Newton’s 2nd Law Sir Isaac Newton was an intellectual rock star, as well as a stylish dresser (1642-1727) Demo: What does the acceleration of an object depend on?

𝒂= 𝑭 𝒏𝒆𝒕 𝒎 Newton’s 2nd Law Whenever a resultant force acts on an object, it produces an acceleration: an acceleration that is directly proportional to the force and inversely proportional to the mass. 𝒂= 𝑭 𝒏𝒆𝒕 𝒎

Newton’s 2nd Law 𝑎= 𝐹 𝑛𝑒𝑡 𝑚 = 100 𝑁 50 𝑘𝑔 =2 𝑁 𝑘𝑔 =2 𝑚 𝑠2

Newton’s 2nd Law 𝑎= 𝐹 𝑛𝑒𝑡 𝑚 = 200 𝑁 50 𝑘𝑔 =4 𝑁 𝑘𝑔 =4 𝑚 𝑠2

Newton’s 2nd Law 𝑎= 𝐹 𝑛𝑒𝑡 𝑚 = 200 𝑁 25 𝑘𝑔 =8 𝑁 𝑘𝑔 =8 𝑚 𝑠2

Newton’s 2nd Law 𝑎= 𝐹 𝑛𝑒𝑡 𝑚 = 0 𝑁 50 𝑘𝑔 =0 𝑁 𝑘𝑔 =0 𝑚 𝑠2

Force and Acceleration DF Da = slope = mass F a DF Da 8 N 4 m/s2 = 2 N m/s2 Inertia or mass of = 2 kg Q: What is the physical significance of the slope of the graph of a vs. F?