Three identical small spheres, each of weight 2 Ib, can slide freely on a horizontal frictionless surface. Spheres B and C are connected by a light rod and are at rest in the position shown when sphere B is struck squarely by sphere A which is moving to the right with a velocity v 0 = ( 8 ft/s ) i .Knowing that θ = 45 ° and that the velocities of spheres A and B immediately after the impact are v A = 0 and v 0 = ( 6 ft/s ) i+ ( v g ) y j , determine ( v g ) y and the velocity of C immediately after impact.
Three identical small spheres, each of weight 2 Ib, can slide freely on a horizontal frictionless surface. Spheres B and C are connected by a light rod and are at rest in the position shown when sphere B is struck squarely by sphere A which is moving to the right with a velocity v 0 = ( 8 ft/s ) i .Knowing that θ = 45 ° and that the velocities of spheres A and B immediately after the impact are v A = 0 and v 0 = ( 6 ft/s ) i+ ( v g ) y j , determine ( v g ) y and the velocity of C immediately after impact.
Solution Summary: The author illustrates the equation for conservation of linear momentum.
Three identical small spheres, each of weight 2 Ib, can slide freely on a horizontal frictionless surface. Spheres B and C are connected by a light rod and are at rest in the position shown when sphere B is struck squarely by sphere A which is moving to the right with a velocity
v
0
=
(
8
ft/s
)
i
.Knowing that
θ
=
45
°
and that the velocities of spheres A and B immediately after the impact are
v
A
=
0
and
v
0
=
(
6
ft/s
)
i+
(
v
g
)
y
j
, determine
(
v
g
)
y
and the velocity of C immediately after impact.
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