ch08-p013 - 13 We use Eq 8-17 representing the conservation...

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

View Full Document Right Arrow Icon
22 2 0 (17.0 m/s) (9.80 m/s )(42.0 m) 26.5 m/s. B vv g h =+ = + = (c) Similarly, 2 0 2 (17.0 m/s) 2(9.80 m/s )(42.0 m) 33.4 m/s. C g h =+= + = (d) To find the “final” height, we set K f = 0. In this case, we have KU KU mv mgh mgh ff f 00 0 2 1 2 0 += + + which yields 2 2 0 2 (17.0 m/ s) 42.0 m 56.7 m. ( 9 . 8 0 m / s ) f v hh g =+ = + = (e) It is evident that the above results do not depend on mass. Thus, a different mass for the coaster must lead to the same results. 13. We use Eq. 8-17, representing the conservation of mechanical energy (which neglects friction and other dissipative effects).
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 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

Ask a homework question - tutors are online