A bullet of mass 0.018 kg traveling horizontally at a high speed of 200 m/s embeds itself in a block of mass 4 kg that is sitting at rest on a nearly frictionless surface. (a) What is the speed of the block after the bullet embeds itself in the block? Vf = 7 x m/s (b) Calculate the total translational kinetic energy before and after the collision. Ktrans/= 180 Ktrans=260 X J x J
A bullet of mass 0.018 kg traveling horizontally at a high speed of 200 m/s embeds itself in a block of mass 4 kg that is sitting at rest on a nearly frictionless surface. (a) What is the speed of the block after the bullet embeds itself in the block? Vf = 7 x m/s (b) Calculate the total translational kinetic energy before and after the collision. Ktrans/= 180 Ktrans=260 X J x J
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter8: Momentum And Collisions
Section: Chapter Questions
Problem 1OQ
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![A bullet of mass 0.018 kg traveling horizontally at a high speed of 200 m/s embeds itself in a block of mass 4 kg that is sitting at rest on a nearly frictionless surface.
(a) What is the speed of the block after the bullet embeds itself in the block?
Vf = 7
X m/s
(b) Calculate the total translational kinetic energy before and after the collision.
Ktrans,/ = 180
X J
Ktrans,f = 260
X J
(c) Compare the two results and explain why there is a difference.
O The Energy Principle isn't valid for an inelastic collision.
The internal energy of the block-bullet system has increased.
O Some of the momentum is lost in an inelastic collision.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F19e38aca-2292-4ee0-b552-b386555b51e6%2Fe21d43c1-050a-4af0-a386-832ab2446280%2Fu1n5b4_processed.png&w=3840&q=75)
Transcribed Image Text:A bullet of mass 0.018 kg traveling horizontally at a high speed of 200 m/s embeds itself in a block of mass 4 kg that is sitting at rest on a nearly frictionless surface.
(a) What is the speed of the block after the bullet embeds itself in the block?
Vf = 7
X m/s
(b) Calculate the total translational kinetic energy before and after the collision.
Ktrans,/ = 180
X J
Ktrans,f = 260
X J
(c) Compare the two results and explain why there is a difference.
O The Energy Principle isn't valid for an inelastic collision.
The internal energy of the block-bullet system has increased.
O Some of the momentum is lost in an inelastic collision.
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