ch09-p012 - 12. We use the constant-acceleration equations...

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

View Full Document Right Arrow Icon
12. We use the constant-acceleration equations of Table 2-1 (with the origin at the traffic light), Eq. 9-5 for x com and Eq. 9-17 for G v com . At t = 3.0 s, the location of the automobile (of mass m 1 ) is xa t 1 1 2 2 1 2 2 40 30 18 == = .. m/s s m, 2 ch bg while that of the truck (of mass m 2 ) is x 2 = vt = (8.0 m/s)(3.0s) = 24 m. The speed of the automobile then is () 2 1 4.0 m/s 3.0 s 12 m/s, va t = while the speed of the truck
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