Initially a Body Moves in One Direction and Has Kinetic

question 36

Multiple Choice

Initially a body moves in one direction and has kinetic energy K.Then it moves in the opposite direction with three times its initial speed.What is the kinetic energy now?

• A)K
• B)3K
• C)-3K
• D)9K
• E)-9K

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Definitions:

Anaerobic

A type of exercise or biological process that occurs in the absence of oxygen, often leading to the production of lactic acid.

Aerobic Fitness

The ability of the heart, lungs, and circulatory system to supply oxygen efficiently during sustained physical activity.

Heart Attack

A medical emergency where the blood flow to the heart is suddenly blocked, resulting in damage to the heart muscle.

Cardiorespiratory Fitness

A health-related component of physical fitness that relates to the ability of the circulatory and respiratory systems to supply oxygen during sustained physical activity.