HW1_hint

HW1_hint - HW1 hint Three necessary steps to solve...

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

View Full Document Right Arrow Icon
HW1 hint Three necessary steps to solve problems: Step 1 . Substitute ( ) af s = , ( ) v = , or ( ) t = ; Step 2. Separate variables; Step 3. Integrate. 2.7. a). Substituting ( ) ak v f v =− = into dv a dt = and separating variables, you will get dv dt kv (1) After equation (1) is integrated, you can solve v in terms of t. b). Substituting () v f v = into dv av ds = and separating variables, you will get kds vdv −= (2) After equation (2) is integrated, you can solve v in terms of s. 2.9. Consider how to calculate the slop of a tangential line. 2.29. The idea is similar to problem 2.7. However, this problem is simpler, since
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/27/2008 for the course ME 212 taught by Professor Staff during the Spring '05 term at Cal Poly.

Ask a homework question - tutors are online