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.
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.
- Spring '08