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College Physics | 12th Edition | ISBN: 9780321595492 | Authors: Randall D. Knight
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A ball is fired from a cannon at point 1 and follows the

Chapter 3, Problem 21MCQ

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QUESTION:

A ball is fired from a cannon at point 1 and follows the trajectory shown in Figure Q3.21. Air resistance may be neglected. Five possible vectors are also shown in the figure; the letter E represents the zero vector. Which vector best represents

a. The ball’s velocity at position 2?

b. The ball’s acceleration at position 2?

c. The ball’s velocity at position 3?

d. The ball’s acceleration at position 3?

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QUESTION:

A ball is fired from a cannon at point 1 and follows the trajectory shown in Figure Q3.21. Air resistance may be neglected. Five possible vectors are also shown in the figure; the letter E represents the zero vector. Which vector best represents

a. The ball’s velocity at position 2?

b. The ball’s acceleration at position 2?

c. The ball’s velocity at position 3?

d. The ball’s acceleration at position 3?

ANSWER:

Step 1 of 5

We will choose which vector shown in the image best represents the ball's velocity/acceleration at the given position above.

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