University Physics with Modern Physics (14th Edition)
14th Edition
ISBN: 9780321973610
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
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Chapter 3, Problem 3.12E
A rookie quarterback throws a football with an initial upward velocity component of 12.0 m/s and a horizontal velocity component of 20.0 m/s. Ignore air resistance, (a) How much time is required for the football to reach the highest point of the trajectory? (b) How high is this point? (c) How much time (after it is thrown) is required for the football to return to its original level? How does this compare with the time calculated in part (a)? (d) How far has the football traveled horizontally during this time? (e) Draw .x-t, y-t, vx-t, and vy-t graphs for the motion.
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Students have asked these similar questions
A man throws a football with an initial upward velocity component of 15.0 m/s and a horizontal velocity component of 25.0 m/s. Air resistance may be ignored. A) How much time is required for the football to reach the highest point of the trajectory? B) How high is this point? C) How much time (after being thrown) is required for the football to return to its original level? How does this compare with the time calculated in part(a)? d) How far has it travelled horizontally during this time?
Suppose I throw a rock horizontally with an initial speed of 30 m/s. Suppose my release point is 2 m above
the ground.
(a) How long does it take for the rock to hit the ground?
(b) How far in the horizontal direction does the rock travel?
(c) What is the speed of the rock right before it hits the ground?
2. A rookie quarterback throws a football with an initial
upward velocity component of 12 m/s and a horizontal
velocity component of 20 m/s. Ignore air resistance.
(a) What is the initial velocity?
(b) How much time is required for the football to reach the
highest point of the trajectory? How high is this point?
(c) How much time (after it is thrown) is required for the
football to return to its original level?
(d) What is the position of the football at t=1 s?
(e) What is the velocity of the football at t=1 s?
Chapter 3 Solutions
University Physics with Modern Physics (14th Edition)
Ch. 3.1 - In which of these situations would the average...Ch. 3.2 - A sled travels over the crest of a snow-covered...Ch. 3.3 - In Example 3.10, suppose the tranquilizer dart has...Ch. 3.4 - Suppose that the particle in Fig. 3.30 experiences...Ch. 3.5 - Suppose the nose of an airplane is pointed due...Ch. 3 - A simple pendulum (a mass swinging at the end of a...Ch. 3 - Redraw Fig. 3.11a if a is antiparallel to v1. Does...Ch. 3 - A projectile moves in a parabolic path without air...Ch. 3 - A book slides off a horizontal tabletop. As it...Ch. 3 - At the instant that you fire a bullet horizontally...
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A river flows due south with...Ch. 3 - Crossing the River II. (a) In which direction...Ch. 3 - BIO Bird Migration. Canada geese migrate...Ch. 3 - An airplane pilot wishes to fly due west. A wind...Ch. 3 - CALC A rocket is Tired at an angle from the top of...Ch. 3 - CALC A faulty model rocket moves in the xy-plane...Ch. 3 - CALC If r=bt2i+ct3jwhere b and c are positive...Ch. 3 - CALC The position of a dragonfly that is flying...Ch. 3 - CP A test rocket starting from rest at point A is...Ch. 3 - CALC A bird flies in the .vv-plane with a velocity...Ch. 3 - A sly 1.5-kg monkey and a jungle veterinarian with...Ch. 3 - BIO Spiraling Up. 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