A Ball Is Dropped from a Building onto a Scale

question 62

Multiple Choice

A ball is dropped from a building onto a scale below. The ball has a mass of 2.1 kg and the scale reads 20.5 N at the moment of impact. What is the gravitational acceleration constant, the rate of acceleration for an object in free fall, for planet Earth?

• A)9.7 m/s²
• B)10.0 m/s²
• C)9.9 m/s²
• D)9.8 m/s²

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Definitions:

Auditory Images

Mental representations of sounds that are not currently being heard, often involved in memory and imagination.

Sensory Register

The initial stage of memory, where sensory information is stored for a very short period of time before either being discarded or processed further.

Short-term Memory

The capacity for holding a small amount of information in an active, readily available state for a short period of time.

Chunk

A unit of information grouped together for easier processing and recall, often used in memory and learning strategies.