A Coin Is Tossed Upward from a Balcony 390 $h ( t ) = - 16 t ^ { 2 } + v _ { 0 } t + h 0$

question 56

Multiple Choice

A coin is tossed upward from a balcony 390 ft high (h₀) with an initial velocity (v₀) of 16 ft/sec , according to the formula $h ( t ) = - 16 t ^ { 2 } + v _ { 0 } t + h 0$ . where t is time in seconds. During what interval of time will the coin be at a height of at least 70 ft ?

• A) \(4 \sec \leq t \leq 5 \mathrm { sec }\)
• B) \(0 \mathrm { sec } \leq \mathrm { t } \leq 5 \mathrm { sec }\)
• C) \(5 \mathrm { sec } \leq \mathrm { t } \leq 10 \mathrm { sec }\)
• D) \(0 \sec \leq t \leq 1 \mathrm { sec }\)

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Definitions:

Procedural Memory

The type of long-term memory related to the acquisition of skills and procedures, enabling activities such as walking or riding a bike without conscious awareness.

Short-Term Memories

The aspect of memory involved in the temporary storage of recent information, which can typically be held for a period of seconds to a few minutes.

Long-Term Memories

A type of memory responsible for the storage of information over an extended period, potentially as long as a lifetime.

Distraction

Any stimulus or event that diverts attention away from a primary task or point of focus.