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1. A sepak takraw that is kicked from a height of two meters follows a path that is a. circular c. hyperbolic d. parabolic b. linear

1. A sepak takraw that is kicked from a height of two meters follows a path that is a. circular c. hyperbolic d. parabolic b. linear

College Physics
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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Choose the letter of the best answer. Write the chosen letter on a separate sheet of paper. 1. A sepak takraw that is kicked from a height of two meters follows a path that is a. circular b. linear c. hyperbolic d. parabolic 2. At the highest point of its flight, a ball thrown upward will have zero a. acceleration b. velocity d. a and c C. mass 3. In a projectile motion, which velocity component is affected by the force of gravity? a. the horizontal component b. the vertical component c. both the horizontal and vertical components d. neither the horizontal nor the vertical components 4. What happens to the horizontal component of the velocity of a projectile as it moves? a. it increases c. it remains unchanged d. insufficient data b. it decreases 5. What is the direction of the acceleration for any projectile? a. down b. up C. sideways d. the direction the projectile is travelling 6. What effect does the mass of a projectile have on the time it's in the air? (Neglecting air resistance) a. The lighter the projectile, the greater the time in the air b. The heavier the projectile, the greater the time in the air c. The lighter the projectile, the less the time in the air d. It has no effect 7. The vertical acceleration of any projectile ... a. is always 9.8 m/s2. b. is always -9.8 m/s2. C. depends on the launch velocity. d. depends on the angle of launch. 8. A plane flying horizontally at 120 m/s drops a crate. When the crate strikes the ground 15 seconds later, what is the magnitude of the horizontal component of its velocity? a. 147 m/s b. 1800 m/s c. 120 m/s d. 8 m/s
Transcribed Image Text:Choose the letter of the best answer. Write the chosen letter on a separate sheet of paper. 1. A sepak takraw that is kicked from a height of two meters follows a path that is a. circular b. linear c. hyperbolic d. parabolic 2. At the highest point of its flight, a ball thrown upward will have zero a. acceleration b. velocity d. a and c C. mass 3. In a projectile motion, which velocity component is affected by the force of gravity? a. the horizontal component b. the vertical component c. both the horizontal and vertical components d. neither the horizontal nor the vertical components 4. What happens to the horizontal component of the velocity of a projectile as it moves? a. it increases c. it remains unchanged d. insufficient data b. it decreases 5. What is the direction of the acceleration for any projectile? a. down b. up C. sideways d. the direction the projectile is travelling 6. What effect does the mass of a projectile have on the time it's in the air? (Neglecting air resistance) a. The lighter the projectile, the greater the time in the air b. The heavier the projectile, the greater the time in the air c. The lighter the projectile, the less the time in the air d. It has no effect 7. The vertical acceleration of any projectile ... a. is always 9.8 m/s2. b. is always -9.8 m/s2. C. depends on the launch velocity. d. depends on the angle of launch. 8. A plane flying horizontally at 120 m/s drops a crate. When the crate strikes the ground 15 seconds later, what is the magnitude of the horizontal component of its velocity? a. 147 m/s b. 1800 m/s c. 120 m/s d. 8 m/s
9. When an object is launched horizontally, what is the initial vertical velocity? a. 0 m/s b. It's always 9.8 m/s c. It depends on the horizontal launch speed d. It depends on the color of the object being launched 10. At which of the following places does a projectile have the greatest acceleration? a. at the peak of its trajectory b. at the instant it is launched c. half way to the peak d. All points have the same acceleration 11.At which of the following places does a projectile have the greatest velocity? a. at the peak of its trajectory b. at the instant it is launched c. half way to the peak d. All points have the same velocity 12.At which of the following places does a projectile have the least velocity? a. at the peak of its trajectory b. at the instant it is launched c. half way to the peak d. All points have the same velocity 13. A 5-kg mass and a 10-kg mass are launched horizontally from the same height. Which hits the ground first? (Neglect air resistance) a. the 5-kg mass b. both will hit the ground at the same time c. the 10-kg mass d. It depends on the launch velocity 14. Which of the following is true regarding projectile motion. a. Horizontal velocity of projectile is constant. c. Vertical velocity of projectile is constant. d. Acceleration is not constant. e. Momentum is constant. 15. The parabolic path that a rocket follows is called its... a. pathos b. range c. pathogen d. trajectory 16.A projectile is any object that once projected or dropped continues in motion by its own and is influenced only by the downward force of a. inertia, gravity b. mass, frictional force c. inertia, frictional force
Transcribed Image Text:9. When an object is launched horizontally, what is the initial vertical velocity? a. 0 m/s b. It's always 9.8 m/s c. It depends on the horizontal launch speed d. It depends on the color of the object being launched 10. At which of the following places does a projectile have the greatest acceleration? a. at the peak of its trajectory b. at the instant it is launched c. half way to the peak d. All points have the same acceleration 11.At which of the following places does a projectile have the greatest velocity? a. at the peak of its trajectory b. at the instant it is launched c. half way to the peak d. All points have the same velocity 12.At which of the following places does a projectile have the least velocity? a. at the peak of its trajectory b. at the instant it is launched c. half way to the peak d. All points have the same velocity 13. A 5-kg mass and a 10-kg mass are launched horizontally from the same height. Which hits the ground first? (Neglect air resistance) a. the 5-kg mass b. both will hit the ground at the same time c. the 10-kg mass d. It depends on the launch velocity 14. Which of the following is true regarding projectile motion. a. Horizontal velocity of projectile is constant. c. Vertical velocity of projectile is constant. d. Acceleration is not constant. e. Momentum is constant. 15. The parabolic path that a rocket follows is called its... a. pathos b. range c. pathogen d. trajectory 16.A projectile is any object that once projected or dropped continues in motion by its own and is influenced only by the downward force of a. inertia, gravity b. mass, frictional force c. inertia, frictional force
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