12. Which of the following statements is not valid for a projectile? Take upward direction as positive. a. The y component of the velocity of the projectile is zero at the highest point of the projectile's path. b. The x velocity on a projectile is constant at any point on its path if we ignore air resistance. c. The acceleration of the projectile is positive and decreasing when the projectile is moving upwards. d. The acceleration of the projectile is a constant negative value.

12. Which of the following statements is not valid for a projectile? Take upward direction as positive. a. The y component of the velocity of the projectile is zero at the highest point of the projectile's path. b. The x velocity on a projectile is constant at any point on its path if we ignore air resistance. c. The acceleration of the projectile is positive and decreasing when the projectile is moving upwards. d. The acceleration of the projectile is a constant negative value.

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College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Projectile Motion

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12. Which of the following statements is not valid for a projectile?
Take upward direction as positive.
a. The y component of the velocity of the projectile is zero at the
highest point of the projectile's path.
b. The x velocity on a projectile is constant at any point on its path
if we ignore air resistance.
c. The acceleration of the projectile is positive and decreasing when
the projectile is moving upwards.
d. The acceleration of the projectile is a constant negative value.

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