This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: 414141a42Fa =mor F=ma F=m a 2mN=kg sunitstoward the Earth’s center F = mgg = 9.8 m/s2Force of Gravity at Earth’s Surface42a42b42cFree bodydiagramN2ndLawmP+mm2+TTP = m a a = Pm1PAsk a = ?a = P43Ask a = ?T=?1 mass 2 masses T = m2aPT= m1aPm2a= m1aP = m1a +m2a=(m1+m2) aT = m2P(m1+m2)(m1+m2)Free body diagramsN2ndLawsFree body diagramN2ndLawP(m1+m2) m2P+m1TTAsk T= ?T = m2a = m2m2TTm1PP = (m1+m2) a a = P(m1+m2) Now definesystemcarefully to solve specific question asked !!!system43aAsk a = ?system2 masses Internal forces (e.g. T) do not appear only outside to inside forces.m2m3m1T1T2 = m3aT2T1T2PP = (m1+ m2+m3)a+T1T2 = m2a(2)(3)(1)add (1)+(2)+(3) ⇒PT1 = m1am2m3m1PP = (m1+ m2+m3) a = Ma+a = PMeasy wayvery hard wayAsk a = ?systemcarefully define “system” to attack question asked !!443 masses m2m3m1T1T2 = m3PT2T1T2PP = (m1+ m2+m3) a = Ma+a = PMT2 = m3aMAsk T2=?454646a4747a...
View
Full
Document
This note was uploaded on 04/14/2008 for the course PHYSICS 203 taught by Professor Croft during the Spring '08 term at Rutgers.
 Spring '08
 CROFT
 Physics, Force, Gravity, Mass

Click to edit the document details