81. The following diagram shows the muzzle of a cannon located 50. meters above the ground. When the cannon is fired, a ball leaves the muzzle with an initial speed of 250 meters per second. [Neglect air resistance]. Muzzle Horizontal Cliff 50. m Ground Which action would most likely increase the time of flight of a ball fired by the cannon? (1) pointing the muzzle of the cannon toward the ground (2) moving the cannon closer to the edge of the cliff (3) positioning the cannon higher above the ground (4) giving the ball a greater initial horizontal velocity 82. A football player kicks a ball with an initial velocity of 25 meters per second at an angle of 53° above the horizontal. The vertical component of the initial velocity of the ball is (1) 25 m/s (2) 20. m/s (3) 15 m/s (4) 10. m/s
81. The following diagram shows the muzzle of a cannon located 50. meters above the ground. When the cannon is fired, a ball leaves the muzzle with an initial speed of 250 meters per second. [Neglect air resistance]. Muzzle Horizontal Cliff 50. m Ground Which action would most likely increase the time of flight of a ball fired by the cannon? (1) pointing the muzzle of the cannon toward the ground (2) moving the cannon closer to the edge of the cliff (3) positioning the cannon higher above the ground (4) giving the ball a greater initial horizontal velocity 82. A football player kicks a ball with an initial velocity of 25 meters per second at an angle of 53° above the horizontal. The vertical component of the initial velocity of the ball is (1) 25 m/s (2) 20. m/s (3) 15 m/s (4) 10. m/s
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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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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please help with question number 81 and 82
![81. The following diagram shows the muzzle of a
cannon located 50. meters above the ground.
When the cannon is fired, a ball leaves the
muzzle with an initial speed of 250 meters per
second. [Neglect air resistance].
Muzzle
Horizontal
Cliff
50. m
Ground
Which action would most likely increase the
time of flight of a ball fired by the cannon?
(1) pointing the muzzle of the cannon toward
the ground
(2) moving the cannon closer to the edge of
the cliff
(3) positioning the cannon higher above
the ground
(4) giving the ball a greater initial
horizontal velocity
82. A football player kicks a ball with an initial
velocity of 25 meters per second at an angle
of 53° above the horizontal. The vertical
component of the initial velocity of the ball is
(1) 25 m/s (2) 20. m/s (3) 15 m/s (4) 10. m/s](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc7b0bd07-f9a4-4722-8a58-c7c3191c2d59%2Fa85878f0-2c12-4ab0-9841-b57c606ea72d%2F8fs3u3q_processed.jpeg&w=3840&q=75)
Transcribed Image Text:81. The following diagram shows the muzzle of a
cannon located 50. meters above the ground.
When the cannon is fired, a ball leaves the
muzzle with an initial speed of 250 meters per
second. [Neglect air resistance].
Muzzle
Horizontal
Cliff
50. m
Ground
Which action would most likely increase the
time of flight of a ball fired by the cannon?
(1) pointing the muzzle of the cannon toward
the ground
(2) moving the cannon closer to the edge of
the cliff
(3) positioning the cannon higher above
the ground
(4) giving the ball a greater initial
horizontal velocity
82. A football player kicks a ball with an initial
velocity of 25 meters per second at an angle
of 53° above the horizontal. The vertical
component of the initial velocity of the ball is
(1) 25 m/s (2) 20. m/s (3) 15 m/s (4) 10. m/s
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