A $4.00 \mathrm{~kg}$ object is moving at $5.00 \mathrm{~m} / \mathrm{s}$ NORTH. It strikes a $6.00 \mathrm{~kg}$ object that is moving WEST at 2.00 $\mathrm{m} / \mathrm{s}$. The objects undergo a perfectly inelastic (stick together) collision. The kinetic energy lost in the collision is
A) $28.7 \mathrm{~J}$.
B) $34.8 \mathrm{~J}$.
C) $14.9 \mathrm{~J}$.
D) $20.4 \mathrm{~J}$.
E) $18.7 \mathrm{~J}$.

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The Answer of A $4.00 \mathrm{~kg}$ object is moving at $5.00 \mathrm{~m} / \mathrm{s}$ NORTH. It strikes a $6.00 \mathrm{~kg}$ object that is moving WEST at 2.00 $\mathrm{m} / \mathrm{s}$. The objects undergo a perfectly inelastic (stick together) collision. The kinetic energy lost in the collision is
A) $28.7 \mathrm{~J}$.
B) $34.8 \mathrm{~J}$.
C) $14.9 \mathrm{~J}$.
D) $20.4 \mathrm{~J}$.
E) $18.7 \mathrm{~J}$.

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 NORTH It Strikes A Is

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