1. On the diagram above, use a protractor and ruler to draw a vector to represent the initial velocity of the projectile. Begin the vector at point P, and use a scale of 1.0 centimeter 50. meters per second. 2. Determine the horizontal component of the initial velocity. 3. Explain why the projectile has no acceleration in the horizontal direction. [Neglect air friction.]

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
Section: Chapter Questions
Problem 33P: A trapper walks a 5.0-km straigt4ine distance from his cabin to the lake, as shown in the following...
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Base your answers to questions 1 through 3 on the informatión Bělow.
A projectile is fired from the ground with an initial velocity of 250. meters per second at an angle of 60.°
above the horizontal.
Horizontal
1. On the diagram above, use a protractor and ruler to draw a vector to represent the initial velocity of the projectile.
Begin the vector at point P, and use a scale of 1.0 centimeter = 50. meters per second.
2. Determine the horizontal component of the initial velocity.
3. Explain why the projectile has no acceleration in the horizontal direction. [Neglect air friction.]
4. Calculate the magnitude of the centripetal force
acting on Earth as it orbits the Sun, assuming a
circular orbit and an orbital speed of 3.00 × 10*
meters per second. [Show all work, including the
equation and substitution with units.]
5. A baby and stroller have a total mass of 20.
kilograms. A force of 36 newtons keeps the stroller
moving in a circular path with a radius of 5.0
meters. Calculate the speed at which the stroller
moves around the curve. [Show all work, including
the equation and substitution with units.]
Transcribed Image Text:Base your answers to questions 1 through 3 on the informatión Bělow. A projectile is fired from the ground with an initial velocity of 250. meters per second at an angle of 60.° above the horizontal. Horizontal 1. On the diagram above, use a protractor and ruler to draw a vector to represent the initial velocity of the projectile. Begin the vector at point P, and use a scale of 1.0 centimeter = 50. meters per second. 2. Determine the horizontal component of the initial velocity. 3. Explain why the projectile has no acceleration in the horizontal direction. [Neglect air friction.] 4. Calculate the magnitude of the centripetal force acting on Earth as it orbits the Sun, assuming a circular orbit and an orbital speed of 3.00 × 10* meters per second. [Show all work, including the equation and substitution with units.] 5. A baby and stroller have a total mass of 20. kilograms. A force of 36 newtons keeps the stroller moving in a circular path with a radius of 5.0 meters. Calculate the speed at which the stroller moves around the curve. [Show all work, including the equation and substitution with units.]
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