Suppose the centripetal acceleration of a particle moving in a circle is 
, where v is the velocity and r is the radius of the circle. Approximate the maximum percent error in measuring the acceleration due to errors of 7% in v and 5% in r.
Definitions:
Stress
A physical, mental, or emotional factor that causes bodily or mental tension and may be a factor in disease causation.
Control
in experimental research, refers to the practice of limiting factors that could distort or influence the experiment's outcomes outside of the independent variable.
Situation
A set of circumstances or the environment in which an event occurs.
Surprise
An unexpected or astonishing event, fact, or thing.
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