Two Identical Stones Are Dropped from Rest and Feel No

question 55

Multiple Choice

Two identical stones are dropped from rest and feel no air resistance as they fall.Stone A is dropped from height h,and stone B is dropped from height 2h.If stone A takes time t to reach the ground,stone B will take time

• A) 4t.
• B) 2t.
• C) t .
• D) t/ .
• E) t/2.

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Definitions:

Cardiac Muscle

Striated, involuntary muscle tissue found only in the heart.

Medulla Oblongata

The lowest part of the brainstem, controlling vital functions such as heart rate, breathing, and blood pressure.

Autonomic System

Portion of the peripheral nervous system that regulates internal organs.

SA Node

The sinoatrial node, a group of cells located in the right atrium of the heart, acts as a natural pacemaker by generating electrical impulses that initiate each heartbeat.