4. In the figure, four-pont masses are placed as shown. What is the x and y coordinates of the center of mass? 3.0 m 2.0 m 40 kg 2.0 3.0 m 80 kg 6.0 kg 3.0 2.0 m 2.0 kg nh slides on a smooth surface along the x-axis with a speed 1 has a mass of O 2.0 m 3.0 m

Physics for Scientists and Engineers, Technology Update (No access codes included)
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Author:Raymond A. Serway, John W. Jewett
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Chapter9: Linear Momentum And Collisions
Section: Chapter Questions
Problem 9.59P: Figure P9.59a shows an overhead view of the configuration of two pucks of mass In on frictionless...
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4. In the figure, four-point masses are placed as shown. What is the x and y coordinates of the
center of mass?
yA
3.0m
2.0m
2.0
40 kg
3.0m
8.0kg
60 kg
3.0
2.0 m
20 kg
30m
5. A 1.2-kg spring-activated toy bomb slides on a smooth surface along the x-axis with a speed
of 0.50 m/s. At the origin 0, the bomb explodes into two fragments. Fragment 1 has a mass of
0.40kg and a speed of 0.90 m/s along the negative v-axis. What is the energy released by the
explosion?
0 20m
O.80 KE
0.50 m's
12kg
0.40 kg
0.90 m/s
After
Before
DFocu
Transcribed Image Text:4. In the figure, four-point masses are placed as shown. What is the x and y coordinates of the center of mass? yA 3.0m 2.0m 2.0 40 kg 3.0m 8.0kg 60 kg 3.0 2.0 m 20 kg 30m 5. A 1.2-kg spring-activated toy bomb slides on a smooth surface along the x-axis with a speed of 0.50 m/s. At the origin 0, the bomb explodes into two fragments. Fragment 1 has a mass of 0.40kg and a speed of 0.90 m/s along the negative v-axis. What is the energy released by the explosion? 0 20m O.80 KE 0.50 m's 12kg 0.40 kg 0.90 m/s After Before DFocu
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