AEM 2021 Lecture 22: Alternate Form of NSL 3-22-17
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Department
Aerospace Engineering and Mech
Course
AEM 2021
Professor
Hesla Todd
Semester
Spring

Description
Alternate Form of NSL 3-22-17 In terms of linear momentum. Momentum equation NSL Consequence If ∑F=0, thenL=Constant (L is "conserved") called the principle of conservation of linear moment(CLM) Can also express NSL in terms of angular momentum, Where r is the position vector from O to A Units are kgm²/s=Nms (kgm²/s preferred) Peasant units are slugft²/s=lbft/s (lbft/s preferred) Properties ● Magnitude ● Direction perpendicular to r,v ● Sense, RHR Components In 2D,r,vare in the plane →Ho is in z direction Scalar If Ho is positive, particle going CCW around O. If Negative, Ho is CW. Recall in 2D Where d is perpendicular distance O to LOA, r is distance O to A, F2 is perpendicular component of F In terms of rad
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