A $4.00 \mathrm{~kg}$ object is moving at $5.00 \mathrm{~m} / \mathrm{s}$ EAST. It strikes a $6.00 \mathrm{~kg}$ object that is at rest. The objects undergo an elastic collision. The velocity of the $4.00 \mathrm{~kg}$ object after the collision is at an angle of 30.0 degrees SOUTH of EAST. The speed of the $4.00 \mathrm{~kg}$ mass after the collision is
A) $3.55 \mathrm{~m} / \mathrm{s}$.
B) $1.67 \mathrm{~m} / \mathrm{s}$.
C) $4.56 \mathrm{~m} / \mathrm{s}$.
D) $2.66 \mathrm{~m} / \mathrm{s}$.
E) $5.78 \mathrm{~m} / \mathrm{s}$.

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The Answer of A $4.00 \mathrm{~kg}$ object is moving at $5.00 \mathrm{~m} / \mathrm{s}$ EAST. It strikes a $6.00 \mathrm{~kg}$ object that is at rest. The objects undergo an elastic collision. The velocity of the $4.00 \mathrm{~kg}$ object after the collision is at an angle of 30.0 degrees SOUTH of EAST. The speed of the $4.00 \mathrm{~kg}$ mass after the collision is
A) $3.55 \mathrm{~m} / \mathrm{s}$.
B) $1.67 \mathrm{~m} / \mathrm{s}$.
C) $4.56 \mathrm{~m} / \mathrm{s}$.
D) $2.66 \mathrm{~m} / \mathrm{s}$.
E) $5.78 \mathrm{~m} / \mathrm{s}$.

A 4.00 kg4.00 \mathrm{~kg}4.00 kg Object Is Moving At 5.00 m/s5.00 \mathrm{~m} / \mathrm{s}5.00 m/s EAST It Strikes A Is

A $4.00 \mathrm{~kg}$ Object Is Moving At $5.00 \mathrm{~m} / \mathrm{s}$ EAST It Strikes A Is