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 |
Homework Answers
the horizontal velocity of an object in projectle motion is always constant.this is because there are no forces acting on the object along horzontal, so the acceleration is zero and hence the velocity is constant.
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Assuming there is no air resistance, the horizontal velocity of
an object in projectile motion is:...
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...
47. An object undergoing projectile motion travels 1.00 x 102 m in the horizontal direction before...
47. An object undergoing projectile motion travels 1.00 x 102 m in the horizontal direction before returning to its initial height. If the object is thrown initially at a 30.0° angle from the horizontal, determine the x component and the y component of the initial velocity. (Neglect any effects due to air resistance.) Example 3-7
“Answer the following questions for projectile motion on level ground assuming negligible air resistance (the initial...
“Answer the following questions for projectile motion on level ground assuming negligible air resistance (the initial angle being neither nor ): (a) Is the acceleration ever zero? (b) When is the velocity a minimum? A Maximum? (c) Can the velocity ever be the same as the initial velocity at a time other than at t=0? (d) Can the speed ever be the same as the initial speed at a time other than at t=0?
Question 2 For an object following projectile motion, match the answers (2 pts). Horizontal acceleration A....
Question 2 For an object following projectile motion, match the answers (2 pts). Horizontal acceleration A. O Vertical acceleration B. -9.8 m/s2 Horizontal velocity C. Constant Vertical velocity D. changing with time
2. For a projectile launched with an upward initial velocity, the horizontal velocity is always and...
2. For a projectile launched with an upward initial velocity, the horizontal velocity is always and the vertical velocityHint: Pretend the initial vertical velocity is 3m/s and the initial horizontal velocity is 2 m/s. How do these numbers change as the projectile approaches the peak and then approaches landing? a) Constant, Decreases then Increases b) Zero, Is Lowest at the Apex c) Constant, Always Decreases d) Positive, Decreases then Increases
Projectile Motion: An object is fired into a projectile with an initial velocity of 250 m/s at an angle of 60° with resp...
Projectile Motion: An object is fired into a projectile with an initial velocity of 250 m/s at an angle of 60° with respect to the horizontal. a) What is the maximum height it reaches? b) What is the maximum horizontal distance it reaches? c) What is the time of flight of the particle? d) What is its velocity as it reaches the ground? e) Locate the object after 6 seconds.
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.
Use the model for projectile motion, assuming there is no air resistance and g = 32 feet per second per second.
Use the model for projectile motion, assuming there is no air resistance and g = 32 feet per second per second. Determine the maximum height and range of a projectile fired at a height of 4 feet above the ground with an initial speed of 400 feet per second and at an angle of 45° above the horizontal. (Round your answers to three decimal places.) maximum height _______ ft maximum range _______ ft
7. Do the projectile motion General Motion with Unit Vectors and Components An object undergoes the...
7. Do the projectile motion
General Motion with Unit Vectors and Components An object undergoes the following consecutive displacements: s (2i +3j +5k)m,s2 (6i- 9j + 2k)m, and s3 (10i 8j -k)m. a) Find the resultant displacement in terms of unit vectors and components. b) State the magnitude of the resultant displacement. 2. Suppose a hiker travels 5 km southwest from their camp. Then, the hiker travels 2 km 75° north of east. a) Find the displacement of the hiker...
A projectile is launched with an initial velocity of 40 m/s at 60° above the horizontal....
A projectile is launched with an initial velocity of 40 m/s at 60° above the horizontal. Neglecting air resistance, what is horizontal component of the projectile's acceleration?
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...
47. An object undergoing projectile motion travels 1.00 x 102 m in the horizontal direction before returning to its initial height. If the object is thrown initially at a 30.0° angle from the horizontal, determine the x component and the y component of the initial velocity. (Neglect any effects due to air resistance.) Example 3-7
Question 2 For an object following projectile motion, match the answers (2 pts). Horizontal acceleration A. O Vertical acceleration B. -9.8 m/s2 Horizontal velocity C. Constant Vertical velocity D. changing with time
2. For a projectile launched with an upward initial velocity, the horizontal velocity is always and the vertical velocityHint: Pretend the initial vertical velocity is 3m/s and the initial horizontal velocity is 2 m/s. How do these numbers change as the projectile approaches the peak and then approaches landing? a) Constant, Decreases then Increases b) Zero, Is Lowest at the Apex c) Constant, Always Decreases d) Positive, Decreases then Increases
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.
7. Do the projectile motion
General Motion with Unit Vectors and Components An object undergoes the following consecutive displacements: s (2i +3j +5k)m,s2 (6i- 9j + 2k)m, and s3 (10i 8j -k)m. a) Find the resultant displacement in terms of unit vectors and components. b) State the magnitude of the resultant displacement. 2. Suppose a hiker travels 5 km southwest from their camp. Then, the hiker travels 2 km 75° north of east. a) Find the displacement of the hiker...
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