A Rifle of Mass M Is Initially at Rest but Free

question 52

Multiple Choice

A rifle of mass M is initially at rest but free to recoil.It fires a bullet of mass m and velocity v (relative to the ground) .After firing, the velocity of the rifle (relative to the ground) is:

• A)-mv
• B)-Mv/m
• C)-mv/M
• D)-v
• E)mv/M

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Definitions:

Hypnagogic Sensations

Experiences occurring at the onset of sleep, often involving visual, auditory, or tactile hallucinations.

Sleep Spindles

Brief bursts of brain activity visible on an EEG that occur during stage 2 of sleep, associated with memory consolidation and synaptic plasticity.

Imaginatively

In a manner that uses imagination or creative thinking.

Human Growth Hormone

A peptide hormone that stimulates growth, cell reproduction, and cell regeneration in humans and other animals.