Physics 1 Problem Solutions 54

# Physics 1 Problem Solutions 54 - 50 Chapt 5 Newton’s Laws...

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 50 Chapt. 5 Newton’s Laws and Dynamics I a) they cancel out in threesomes. b) they are all zero. c) we just ignore them. d) they cancel out pairwise. e) the external force cancels them out. 005 qmult 00560 1 4 5 easy deducto-memory: center of mass in Fnet=ma 18. “Let’s play Jeopardy ! For \$100, the answer is: The mass-weighted average position of a system of particles: a system being any specified set of material mass elements. This position’s acceleration obeys vector F net = mvectora , where vector F net is the net force (and also the net external force) acting on the system.” What is the , Alex? a) center b) bottom end c) top end d) left end e) center of mass 005 qmult 00562 1 1 5 easy memory: net external forces and center of mass Extra keywords: anticipates later chapters, but that’s OK 19. If you know nothing about the internal forces of a body and only know the net external force that acts on the body and not where on the body the particular external forces act, then, by...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online