A Stationary 4-Kg Shell Explodes into Three Pieces

question 18

Multiple Choice

A stationary 4-kg shell explodes into three pieces. Two of the fragments have a mass of 1 kg each and move along the paths shown with a speed of 10 m/s. The third fragment moves upward as shown.
-What is the speed of the center of mass of this system after the explosion?

• A)zero m/s
• B)1 m/s
• C)3 m/s
• D)5 m/s
• E)7 m/s

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Definitions:

Secretions

Substances produced and released by cells or glands, which serve various functions in the body, such as lubrication, digestion, and signaling.

Fibrinolysin

Fibrinolysin is an enzyme that breaks down fibrin, a protein involved in blood clotting, thereby playing a role in the process of blood clot removal.

Prostaglandins

A group of lipid compounds that are involved in various physiological processes, including inflammation and pain.

Ejaculation

The release of semen from the male reproductive system during sexual arousal.