Two Boys with Masses of 40 Kg and 60 Kg

question 24

Multiple Choice

Two boys with masses of 40 kg and 60 kg stand on a horizontal frictionless surface holding the ends of a light 10-m long rod.The boys pull themselves together along the rod.When they meet the 40-kg boy will have moved what distance?

• A)4 m
• B)5 m
• C)6 m
• D)10 m
• E)need to know the forces they exert

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Definitions:

Breathing

The process of taking air into and expelling it from the lungs, vital for the exchange of oxygen and carbon dioxide.

Highly Aroused

A state of heightened physiological activity, often associated with increased readiness or alertness.

Reticular Formation

A network of nerve pathways in the brainstem involved in consciousness, the sleep-wake cycle, and filtering incoming stimuli to discriminate irrelevant background stimuli.

Blood Flows

The continuous movement of blood through the circulatory system, delivering essential nutrients and oxygen to the body and removing waste products.