Answer:
mice total momentum (-0.000250, 0.00639) Kg m
Explanation:
To calculate the moment of the mice we must multiply their mass by their velocities, remember that the moment is a vector quantity, so we use the components of velocity
mouse 1
m1 = 0.0225 Kg
V1 = (0.869, -0.283) m / s
Px = m Vx
Px1 = 0.0225 0.869
Px1 = 0.01955 Kg m
Py = m Vy
Py1 = 0.0225 (-0.283)
Py1 = -0.006368 Kg m
P1 = (0.0196, -0.00637) Kg m
Mouse 2
m2 = 0.0223 Kg
Px2 = 0.0223 (-0.883) = -0.0196 Kg m
Py2 = 0.0223 (-0.253) = -0.00564 Kg m
P2 = (-0.0196, -0.00564) Kg m
Mouse 3
m3 = 0.0197
Px3 = 0.0197 0.345 = 0.00680 Kg m
Py3 = 0.0197 0.803 = 0.0158 Kg m
P3 = (0.00680, 0.0158) Kg m
Mouse4
m4 = 0.0127 Kg
Px4 = 0.0127 (-0.555) = -0.00705 Kg m
Py4 = 0.0127 0.205 = 0.00260 Kg m
P4 = (-0.00705, 0.00260) Kg m
To find the total momentum we must add each component of the individual moments
Px = Px1 + Px2 + Px3 + Px4
Py = py1 + Py2 + Py3 + Py4
Px = 0.0196 -0.0196 +0.00680 -0.00705
Px = -0,000250 Kg m
Py = -0.00637 -0.00564 +0.0158 +0.00260
Py = 0.00639 Kg m
P = (-0.000250, 0.00639) Kg m
is the buoyant force
is the density of the liquid
is the acceleration due to gravity