Question

Sustained negative acceleration (-Gz) between 2.5 - 3 Gs reaches the limit of human tolerance and may lead to

a) Loss of consciousness
b) Increased alertness
c) Reduced heart rate
d) Improved vision

Answer 1

The correct answer to the effects of sustained negative acceleration between 2.5 to 3 Gs is a) Loss of consciousness, as it can overwhelm the human body.

Step-by-step explanation:

The question relates to the effects of negative acceleration, also known as deceleration, when it is sustained at high levels measured in multiples of Earth's gravitational acceleration (g-force). Specifically, the question asks what might happen to a human experiencing sustained negative acceleration between 2.5 to 3 g's (Gz). The correct answer is a) Loss of consciousness. High levels of negative Gz acceleration can overwhelm the human body, causing blood to rush to the head, potentially leading to vision changes, unconsciousness, and in extreme cases, even death. It does not lead to increased alertness, a reduced heart rate, or improved vision.