Newton's Second Law, Fnet = ma Rapid Review for AP Physics B & C
By Greg Jacobs | Joshua Schulman — McGraw-Hill Professional
Updated on Feb 10, 2011
For a more thorough review, refer to these concepts:
- Only Net Force Equals ma for AP Physics B & C
- F net on Inclines for AP Physics B &C
- F net for a Pulley for AP Physics B & C
- Newton's Second Law, Fnet = ma: Of Special Interest to Physics C Students
- The net force on an object equals the mass of the object multiplied by the object's acceleration.
- To solve a problem using Fnet = ma, start by drawing a good free–body diagram. Resolve forces into vector components. For each axis, the vector sum of forces along that axis equals mai, where ai is the acceleration of the object along that axis.
- When an object is on an inclined plane, resolve its weight into vector components that point parallel and perpendicular to the plane.
- For problems that involve a pulley, remember that if there's one rope, there's one tension.
From 5 Steps to a 5 AP Physics B & C. Copyright © 2010 by The McGraw-Hill Companies. All Rights Reserved.
Next Study Guide: Momentum Practice Problems for AP Physics
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