256_Physics ProblemsTechnical Physics

# 256_Physics ProblemsTechnical Physics - 258 P9.17 Linear...

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

258 Linear Momentum and Collisions P9.17 Momentum is conserved 10 0 10 5 01 0 600 301 3 .. . ×= = kg kg m s ms ej bg b g v v P9.18 (a) mv mv mv ii f 12 34 += where m 250 10 4 . k g v f = + = 400 3 200 4 250 . af (b) K K mv fi f i i −= + L N M O Q P × 1 2 4 1 2 1 2 3 2 50 10 12 5 8 00 6 00 3 75 10 2 1 2 2 24 4 . . . J P9.19 (a) The internal forces exerted by the actor do not change the total momentum of the system of the four cars and the movie actor 43 2 0 0 4 0 0 600 400 4 m m v i i a f a f =+ = + = . FIG. P9.19 (b) WK K m m actor m =− = + 1 2 32 0 0 4 0 0 1 2 42 5 0 22 2 . W actor kg k J = × +− = 2 12 0 16 0 25 0 37 5 4 2 . ... . (c) The event considered here is the time reversal of the perfectly inelastic collision in the previous problem. The same momentum conservation equation describes both processes.
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

Ask a homework question - tutors are online