A Car Travels Counterclockwise Around a Flat Circle of Radius

question 79

Multiple Choice

A car travels counterclockwise around a flat circle of radius 0.25 km at a constant speed of 20 m/s.When the car is at point A as shown in the figure,what is the car's acceleration?

• A)1.6 m/s²,south
• B)Zero
• C)1.6 m/s²,east
• D)1.6 m/s²,north
• E)1.6 m/s²,west

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Definitions:

Recursive Method

A method in programming that calls itself in order to solve a problem by breaking it down into smaller, more manageable parts.

Power of X

Refers to a mathematical operation where a number (X) is raised to the power of another number, indicating multiplication of X by itself a certain number of times.

Recursive Method

A technique in programming where a method calls itself to break down complex problems into simpler ones, utilizing a different angle from its first explanation.

Factorial

A mathematical operation that involves multiplying a number by every number less than it down to 1; e.g., the factorial of 5 (denoted as 5!) is 120.