Enwitch Acceleration Read the passage and examine the figure. Then use a separate sheet of paper to answer the questions that follow. Exploring Changing Directions When an object speeds up or slows down, it is easy to understand that it has accelerated. But when an object moves at a constant speed and changes direction, it is harder to understand why this is also called an acceleration. Look at the figure below. Suppose an object is moving in a circle at a constant speed of 2.0 cm/s. When the object is at point A, it is moving to the right and if it continued to go in a straight line, it would move to point B. Instead, it moves along the circle to point C. 1. Measure the distance in centimeters An object is moving from point A to point B. How far is it? in a circle at 2.0 cm/s 2. Measure the distance along the circle in centimeters from point A to point C. How far is it? 3. How far is the object from where it would have been if it had not been accelerated? (How far is it from B to C?) 4. Suppose the object at point A were moving at 4.0 cm/s. If it were not accelerated, where would it be after 1.0 second? 5. If the object moved along the circle at 4.0 cm/s, where would it be after 1.0 second? 6. Measure the distance in centimeters between the two points you indentify in Questions 4 and 5. How does this D. compare to the distance you measured speed = 2.0 cm/s in Question 3? 7. Suppose the circle has a circumference of 25.1 cm. Compare where the object would have been if it had gone in a straight line at 4.0 cm/s for 6.28 s (no acceleration) to where it is after it has gone around the circle for 6.28 s at 4.0 cm/s