52 part a the c ars of a long c oal train are filled

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: what is the av erage forc e that the engine mus t ex ert on the c oal train to k eep it mov ing under the hopper at a s peed of 0.50 ? Express your answer using two significant figures. ANSWER: 5000 Correct Problem 9.62 Two 500 bloc k s of wood are 2.0 apart on a fric tionles s table. A 10 bullet is fired at 400 toward the bloc k s . It pas s es all the way through the firs t bloc k , then embeds its elf in the s ec ond bloc k . The s peed of the firs t bloc k immediately afterward is 6.0 . Part A What is the s peed of the s...
View Full Document

This note was uploaded on 01/28/2013 for the course PHY 121 taught by Professor Stephens during the Spring '08 term at SUNY Stony Brook.

Ask a homework question - tutors are online