Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
4th Edition
ISBN: 9780134110684
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 12EAP
A g air-track glider collides with a spring at one end of the track. FIGURE EX11.12 shows the glider’s velocity and the force exerted on the glider by the spring. How long is the glider in contact with the spring?
FIGURE EX11.12
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A bullet of mass 1.3×10−3 kg embeds itself in a wooden block with mass 0.996 kg, which then compresses a spring (k = 130 N/m ) by a distance 4.0×10−2 mm before coming to rest. The coefficient of kinetic friction between the block and table is 0.45.
1) What is the initial speed of the bullet?
Express your answer using two significant figures.
vin =............m/s
2)
What fraction of the bullet's initial kinetic energy is dissipated (in damage to the wooden block, rising temperature, etc.) in the collision between the bullet and the block?
Express your answer using two significant figures.
ΔK/K =..........
Chapter 11 Solutions
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
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