Bryce, a mouse lover, keeps his four pet mice in a roomy cage, where they spend

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 0.0141 kg, 0.0141 kg, 0.0159 kg, and 0.0101 kg. At this very instant the x and y components of the mice's velocities are, respectively, (0.423 m/s, -0.439 m/s), (-0.937 m/s, -0.771 m/s), (0.173 m/s, 0.159 m/s), and (-0.667 m/s, 0.459 m/s). Calculate the x and y components of Bryce's mice's total momentum, px and py.

Explanation / Answer

Mouse-1

Px= 0.423m/s * 0.0141 Kg = 0.005964 Kg-m/s (Momentum of mouse is in Positive x direction)

Py = -.439m/s * 0.0141 Kg = 0.00619 Kg-m/s (Momentum of mouse is in Negative y direction)

Mouse-2

Px= -0.937m/s * 0.0141 Kg = 0.01321 Kg-m/s (Momentum of mouse is in Negative x direction)

Py = -0.771m/s * 0.0141 Kg = 0.01087 Kg-m/s (Momentum of mouse is in Negative y direction)

Mouse-3

Px= 0.173m/s * 0.0159 Kg = 0.002751 Kg-m/s (Momentum of mouse is in Positive x direction)

Py = 0.159 m/s * 0.0159 Kg = 0.002528 Kg-m/s (Momentum of mouse is in Positive y direction)

Mouse-4

Px= -o.667m/s * 0.0101 Kg = 0.00674 Kg-m/s (Momentum of mouse is in Negative x direction)

Py = 0.459 m/s * 0.0101 Kg = 0.004636 Kg-m/s (Momentum of mouse is in Positive -y direction)

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