Homework Answers
Ans. During free flight motion the airplane moves with two components of the Velocity.
Vertical component of velocity is called climb speed and horizontal component of the velocity is constant during free flight motion.
This component will give us range of airplane.
From equation of motion we see that local horizontal component of the velocity with time will give us distance travelled by airplane i.e Range.
Hence option 1 is correct.
Option 2 is incorrect because g is acceleration due to gravity. It is vertically downward. Airplane always experience gravity force.
Option 3 is incorrect because if horizontal component of the velocity becomes zero then there will not be any distance travelled by airplane. It means airplane is stationary and at rest. It will not be possible case for free flight motion.
Option 4 is also incorrect because g/2 also represents acceleration due to gravity which always acts downwards.
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The horizontal component of velocity remains during a free-flight motion. constant 8 zero 8/2
d) zero, vertical downward. e) zero, horizontal. 10. In ideal projectil the x-component of the velocity...
d) zero, vertical downward. e) zero, horizontal. 10. In ideal projectil the x-component of the velocity of the object during the ascending part of the e motion, when the positive x-axis is chosen to be horizontally rightward, motion and the x- component of the velocity during the descending part of the motion are, respectively a) positive, negative. b) negative, positive. c) positive, positive. d) negative, negative. 11. In ideal projectile motion, when the positive y-axis is chosen to be vertically...
Assuming there is no air resistance, the horizontal velocity of an object in projectile motion is:...
Assuming there is no air resistance, the horizontal velocity of an object in projectile motion is: A. Changing B. Constant C. Always zero, regardless of the initial horizontal velocity component
QUESTION 4 For the motion of a projectile with no air resistance. How does total flight...
QUESTION 4 For the motion of a projectile with no air resistance. How does total flight time change if you double the mass of your projectile? The time of flight is doubled. The time of flight is halved. The time of flight is the same for both masses. The time of flight decreases proportionally to the inverse of the mass. QUESTION 5 Which of these quantities stay constant for the 2D motion of a projectile with no air resistance? Acceleration...
physics For general projectile motion, which of the following best describes the horizontal component of a...
physics
For general projectile motion, which of the following best describes the horizontal component of a proje acceleration? Assume air resistance is negligible O The horizontal component of a proje acceleration remains a nonzero constant O The horizontal component of a proje acceleration initially decreases and then increases. O The horizontal component of a proje acceleration continually decreases O The horizontal component of a proje acceleration continually decreases. O The horizontal component of a projectile's acceleration is zero.
D Question 9 2 pts In uniform circular motion, the velocity remains constant. O True False
D Question 9 2 pts In uniform circular motion, the velocity remains constant. O True False
22. the launching velocity of a projectile is 20 m/s at 53 above the horizontal. What...
22. the launching velocity of a projectile is 20 m/s at 53 above the horizontal. What i the vertical component of its velocity at launch? Its horizontal component of air friction, which of these components remains constant throughout t of these components determines the projectile's time in the air? velocity? Neglecting hich he flight path? W uppose you exert 200 N horizontally on your refrigerator to push it acros the kitchen foor at constant velocity (a) How much work is...
Relative Velocity and Projectile Motion . a)An airplane moves horizontally with a constant velocity VA/G 300m/s...
Relative Velocity and Projectile Motion . a)An airplane moves horizontally with a constant velocity VA/G 300m/s with respect to ground at height H = 600m. The plane fires a container, which has a speed VC/A = 300m/s and direction α = 300 with respect to the airplane immediately after the firing. The container performs a projectile motion and hits the ground at a horizontal distance L from the point of the firing (see figure a)What is the velocity (horizontal and...
1.) Time of flight (hint—you have to use vertical equations) SHOW ALL WORK! 2.) Horizontal velocity...
1.) Time of flight (hint—you have to use vertical equations)
SHOW ALL WORK!
2.) Horizontal velocity
You shoot a nerf dart directly horizontal into the air at a comfortable arm position. Data collection Experiment Two - Horizontal projectile motion Measure the height of arms off the ground. Height of arms 1.00 meters Keeping the arms as steady and level as possible push the thruster in to the projectile dart and record how far it goes in meters. Repeat 3 times...
for questions #14-17, choose from increase, decrease, remains constant. 14. if velocity increases, and radius remains th...
for questions #14-17, choose from increase, decrease, remains constant. 14. if velocity increases, and radius remains the same, centripetal acceleration _15. if velocity remains constant, and radius decreases, the perceiced centrifugal force____16. if an object has uniform circular motion, acceleration ______ 17. if centripetal acceleration is increased, it is because force_____
-40 m/s in steps of -10 m/s every second; hence, approximately 8 seconds elapse during the...
-40 m/s in steps of -10 m/s every second; hence, approximately 8 seconds elapse during the motion. The velocity acceleration in the horizontal direction is zero. Therefore, the displacement of the ball in the r-di given by the equation,ax vort (20 m/s)(8 s) = 160 m. vector constantly changes direction, but the horizontal velocity never changes because the LEARN MORE REMARKS problems This example emphasizes the independence of the x- and y-components in projectile motion QUESTION How does the magnitude...
d) zero, vertical downward. e) zero, horizontal. 10. In ideal projectil the x-component of the velocity of the object during the ascending part of the e motion, when the positive x-axis is chosen to be horizontally rightward, motion and the x- component of the velocity during the descending part of the motion are, respectively a) positive, negative. b) negative, positive. c) positive, positive. d) negative, negative. 11. In ideal projectile motion, when the positive y-axis is chosen to be vertically...
QUESTION 4 For the motion of a projectile with no air resistance. How does total flight time change if you double the mass of your projectile? The time of flight is doubled. The time of flight is halved. The time of flight is the same for both masses. The time of flight decreases proportionally to the inverse of the mass. QUESTION 5 Which of these quantities stay constant for the 2D motion of a projectile with no air resistance? Acceleration...
physics
For general projectile motion, which of the following best describes the horizontal component of a proje acceleration? Assume air resistance is negligible O The horizontal component of a proje acceleration remains a nonzero constant O The horizontal component of a proje acceleration initially decreases and then increases. O The horizontal component of a proje acceleration continually decreases O The horizontal component of a proje acceleration continually decreases. O The horizontal component of a projectile's acceleration is zero.
D Question 9 2 pts In uniform circular motion, the velocity remains constant. O True False
22. the launching velocity of a projectile is 20 m/s at 53 above the horizontal. What i the vertical component of its velocity at launch? Its horizontal component of air friction, which of these components remains constant throughout t of these components determines the projectile's time in the air? velocity? Neglecting hich he flight path? W uppose you exert 200 N horizontally on your refrigerator to push it acros the kitchen foor at constant velocity (a) How much work is...
Relative Velocity and Projectile Motion . a)An airplane moves horizontally with a constant velocity VA/G 300m/s with respect to ground at height H = 600m. The plane fires a container, which has a speed VC/A = 300m/s and direction α = 300 with respect to the airplane immediately after the firing. The container performs a projectile motion and hits the ground at a horizontal distance L from the point of the firing (see figure a)What is the velocity (horizontal and...
1.) Time of flight (hint—you have to use vertical equations)
SHOW ALL WORK!
2.) Horizontal velocity
You shoot a nerf dart directly horizontal into the air at a comfortable arm position. Data collection Experiment Two - Horizontal projectile motion Measure the height of arms off the ground. Height of arms 1.00 meters Keeping the arms as steady and level as possible push the thruster in to the projectile dart and record how far it goes in meters. Repeat 3 times...
-40 m/s in steps of -10 m/s every second; hence, approximately 8 seconds elapse during the motion. The velocity acceleration in the horizontal direction is zero. Therefore, the displacement of the ball in the r-di given by the equation,ax vort (20 m/s)(8 s) = 160 m. vector constantly changes direction, but the horizontal velocity never changes because the LEARN MORE REMARKS problems This example emphasizes the independence of the x- and y-components in projectile motion QUESTION How does the magnitude...
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