A 1200-Kg Cannon Suddenly Fires A $100 - \mathrm { kg }$

question 19

Multiple Choice

A 1200-kg cannon suddenly fires a $100 - \mathrm { kg }$ cannonball at $35 \mathrm {~m} / \mathrm { s }$ What is the recoil speed of the cannon? Assume that frictional forces are negligible and the cannon is fired horizontally.

• A)2.9 m/s
• B)35 m/s
• C)3.5 m/s
• D)3.2 m/s

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Definitions:

Absolute Refractory Period

A period immediately following the transmission of an impulse in nerve or muscle in which a neuron or muscle is not responsive to further stimulation.

Neural Impulse

An electrical signal that travels along a neuron's axon, transmitting information throughout the nervous system.

Milliseconds

A unit of time equal to one thousandth of a second, often used to measure very short durations, especially in scientific contexts.

Absolute Refractory Period

A phase during which a neuron is incapable of firing again immediately after an action potential, ensuring the signal only moves in one direction.