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Unformatted text preview: resistance of an object to changes in its moLon due to a force • For a body with a larger mass, the acceleraLon is less under the acLon of a given force, compared to a body with lower mass • kg is the unit of mass in SI Newton’s Second Law • The acceleraLon of an object is directly proporLonal to the net force acLng on it and inversely proporLonal to its mass. • SI unit of force is a Newton (N) A 970-‐kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it reaches a speed of 25.0 m/s. What is the average force exerted on the car during this Lme? A 970-‐kg car starts from rest on a hor...
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- Winter '14