Bryce, a mouse lover, keeps his four pet mice in a roomy cage, where they spend
ID: 1459156 • Letter: B
Question
Bryce, a mouse lover, keeps his four pet mice in a roomy cage, where they spend much of their spare time–when they're not sleeping or eating–joyfully scampering about on the cage's floor. Bryce tracks his mice's health diligently and just now recorded their masses as 0.0211 kg, 0.0199 kg, 0.0231 kg, and 0.0213 kg. At this very instant the x and y components of the mice's velocities are, respectively, (0.103 m/s, -0.807 m/s), (-0.551 m/s, -0.647 m/s), (0.939 m/s, 0.523 m/s), and (-0.193 m/s, 0.947 m/s). Calculate the x and y components of Bryce's mice's total momentum, px and py.
Explanation / Answer
momentum P = product of mass and velocity
Along X a xis
Px = m1v1x + m2V2x + m3V3x + m4 V4 x
Px = (0.0211 * 0.103) - (0.019 * 0.551) + (0.0231 * 0.939) - (0.0213 * 0.193)
Px = - 9.28 e -4 kgm/s
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Along Py = m1v1y + m2V2y + m3V3y + m4 V4y
Px = -(0.0211 * 0.807) - (0.019 * 0.647) + (0.0231 * 0.523) + (0.0213 * 0.947)
Px = 2.9 e -3 kgm/s
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