Physics 1 Problem Solutions 53

Physics 1 Problem Solutions 53 - Chapt. 5 Newtons Laws and...

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

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Chapt. 5 Newtons Laws and Dynamics I 49 005 qmult 00534 1 5 1 easy memory: Newtons 2nd law class mantra 1 13. From here on in this course, a key thing to remember (to recite to yourself) when faced with any force problem is that Newtons 2nd law ( vector F net = mvectora ) is: a) ALWAYS VALID . And it is a VECTOR equation, and so is always VALID component by component. And vector F net is the VECTOR sum of all forces acting on the body of mass m . It is not any particular force. If all the forces sum to zero vectorially, vector F net = mvectora = 0. If you are given the acceleration, then you can often use vector F net = mvectora to solve for an unknown force. b) ALWAYS VALID . And it is a SCALAR equation. And vector F net is the SCALAR sum of all forces acting on the body of mass m . It is not any particular force. If all the forces sum to zero, vector F net = mvectora = 0. If you are given the acceleration, then you can often use vector F net = mvectora to solve for an unknown force.to solve for an unknown force....
View Full Document

Ask a homework question - tutors are online