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 0.0217 kg, 0.0209 kg, 0.0177 kg, and 0.0163 kg. At this very instant the x and y components of the mice's velocities are, respectively, (0.973 m/s, -0.943 m/s), (-0.827 m/s, -0.357 m/s), (0.619 m/s, 0.171 m/s), and (-0.459 m/s, 0.447 m/s). Calculate the x and y components of Bryce's mice's total momentum, px and py.

Explanation / Answer

Momentum P = mass* velocity

so

P = m1v1x + m2V2x+ m3V3x+ m4V4x

Px = (0.0217* 0.973) -( 0.0209 *0.827)+ (0.0177*0.619 )-(0.163 * 0.459)

Px = -0.06003 kgm/s

--------------------------------------------------

along Y

P = m1v1y + m2V2y+ m3V3y+ m4V4y

Px = -(0.0217* 0.943) -( 0.0209 *0.357)+ (0.0177*0.171) + (0.163 * 0.447)

Px = 0.047 kgm/s

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