A 5.00-g bullet, traveling horizontally with a velocity of magnitude 400 m/s, is fired into a wooden block with mass 0.900 kg, initially at rest on a level surface. The bullet passes through the block and emerges with its speed reduced to 190 m/s. The block slides a distance of 72.0 cm along the surface from its initial position.

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter11: Collisions
Section: Chapter Questions
Problem 73PQ: Three runaway train cars are moving on a frictionless, horizontal track in a railroad yard as shown...
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Part A
What is the coefficient of kinetic friction between block and surface?
A 5.00-g bullet, traveling horizontally with a velocity of magnitude
400 m/s, is fired into a wooden block with mass 0.900 kg,
initially at rest on a level surface. The bullet passes through the
block and emerges with its speed reduced to 190 m/s. The block
Express your answer using three significant figures.
slides a distance of 72.0 cm along the surface from its initial
ΑΣφ
?
position.
Request Answer
Mk =
Submit
Request Answer
Part B
What is the decrease in kinetic energy of the bullet?
Express your answer to three significant figures and include the appropriate units.
?
JAK| =
Value
Units
Submit
Request Answer
Part C
What is the kinetic energy of the block at the instant after the bullet passes through it?
Express your answer to three significant figures and include the appropriate units.
Transcribed Image Text:Part A What is the coefficient of kinetic friction between block and surface? A 5.00-g bullet, traveling horizontally with a velocity of magnitude 400 m/s, is fired into a wooden block with mass 0.900 kg, initially at rest on a level surface. The bullet passes through the block and emerges with its speed reduced to 190 m/s. The block Express your answer using three significant figures. slides a distance of 72.0 cm along the surface from its initial ΑΣφ ? position. Request Answer Mk = Submit Request Answer Part B What is the decrease in kinetic energy of the bullet? Express your answer to three significant figures and include the appropriate units. ? JAK| = Value Units Submit Request Answer Part C What is the kinetic energy of the block at the instant after the bullet passes through it? Express your answer to three significant figures and include the appropriate units.
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