A Boy on the Edge of a Vertical Cliff 20

question 1

Multiple Choice

A boy on the edge of a vertical cliff 20 m high throws a stone horizontally outwards with a speed of 20 m/s.It strikes the ground at what horizontal distance from the foot of the cliff? Use g = 10 m/s²

• A)10 m
• B)40 m
• C)50 m
• D)50 m
• E)none of these

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Definitions:

Phobia

An irrational and excessive fear of an object, situation, or activity that causes avoidance and distress.

Hypnagogic Image

Vivid, dreamlike images that occur at the onset of sleep.

Compulsion

An irresistible urge to perform an act repeatedly, often irrational and against one's conscious wishes.

PTSD

Post-Traumatic Stress Disorder, a psychiatric disorder that may occur in people who have experienced or witnessed a traumatic event, characterized by severe anxiety, flashbacks, and uncontrollable thoughts about the event.