Question: A stationary (5.0-mathrm{kg}) ball explodes into two pieces due to a firecracker inside. One piece with inertia (2.0 mathrm{~kg}) travels to the left at (10

A stationary $5.0-\mathrm{kg}$ ball explodes into two pieces due to a firecracker inside. One piece with inertia $2.0 \mathrm{~kg}$ travels to the left at $10 \mathrm{~m} / \mathrm{s}$.

(a) What is the speed of the second fragment?

(b) How much energy was released in the explosion?

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