A tennis ball is shot vertically upward in an evacuated chamber inside a tower with an initial speed of 20.0 m/s at time t=0 s. 8. How high does the ball rise? Ans: 20.4 m 9. Approximately how long does it take the tennis ball to reach its maximum height? Ans: 2.04 s 10. Determine the velocity of the ball at t = 3.00 seconds. Ans: 9.40 m/s, downward 11. What is the magnitude of the acceleration of the ball when it is at its highest point? Ans: 9.80 m/s²

Physics for Scientists and Engineers
10th Edition
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter2: Motion In One Dimension
Section: Chapter Questions
Problem 39AP: Hannah tests her new sports car by racing with Sam, an experienced racer. Both start from rest, but...
icon
Related questions
icon
Concept explainers
Topic Video
Question

could you walk me through each problem and explain to me how we got to the answer 

i would be really greatful if u did your writing explanation on paper:)

A tennis ball is shot vertically upward in an evacuated chamber inside a tower with an initial speed of
20.0 m/s at time t=0 s.
8. How high does the ball rise?
Ans: 20.4 m
9. Approximately how long does it take the tennis ball to reach its maximum height?
Ans: 2.04 s
10. Determine the velocity of the ball at t = 3.00 seconds.
Ans: 9.40 m/s, downward
11. What is the magnitude of the acceleration of the ball when it is at its highest point?
Ans: 9.80 m/s²
Use the following to answer questions 12-15.
A rock, dropped from rest near the surface of an atmosphere-free planet, attains a speed of 20.0 m/s
after falling 8.0 meters.
12. What is the magnitude of the acceleration due to gravity on the surface of this planet?
Ans: 25 m/s²
13. How long did it take the object to fall the 8.0 meters mentioned?
Ans: 0.80 s
14. How long would it take the object, falling from rest, to fall 16 m on this planet?
Ans: 1.1 s
15. Determine the speed of the object after falling from rest through 16 m on this planet.
Ans: 28 m/s
16. At time t=0 s, a puck is sliding on a horizontal table with a velocity 3.60 m/s, 35.0° above the +x axis. As
the puck slides, a constant acceleration acts on it that has the following components: ax = -0.360 m/s² and
ay = -0.980 m/s². What is the velocity of the puck at time t = 1.50 s?
Ans: 2.48 m/s, 13.9° above the +x axis
Transcribed Image Text:A tennis ball is shot vertically upward in an evacuated chamber inside a tower with an initial speed of 20.0 m/s at time t=0 s. 8. How high does the ball rise? Ans: 20.4 m 9. Approximately how long does it take the tennis ball to reach its maximum height? Ans: 2.04 s 10. Determine the velocity of the ball at t = 3.00 seconds. Ans: 9.40 m/s, downward 11. What is the magnitude of the acceleration of the ball when it is at its highest point? Ans: 9.80 m/s² Use the following to answer questions 12-15. A rock, dropped from rest near the surface of an atmosphere-free planet, attains a speed of 20.0 m/s after falling 8.0 meters. 12. What is the magnitude of the acceleration due to gravity on the surface of this planet? Ans: 25 m/s² 13. How long did it take the object to fall the 8.0 meters mentioned? Ans: 0.80 s 14. How long would it take the object, falling from rest, to fall 16 m on this planet? Ans: 1.1 s 15. Determine the speed of the object after falling from rest through 16 m on this planet. Ans: 28 m/s 16. At time t=0 s, a puck is sliding on a horizontal table with a velocity 3.60 m/s, 35.0° above the +x axis. As the puck slides, a constant acceleration acts on it that has the following components: ax = -0.360 m/s² and ay = -0.980 m/s². What is the velocity of the puck at time t = 1.50 s? Ans: 2.48 m/s, 13.9° above the +x axis
1. A landing airplane makes contact with the runway with a speed of 75.0 m/s and moves toward the south.
After 18.5 seconds, the airplane comes to rest. What is the average acceleration of the airplane during the
landing?
Ans: 4.05 m/s², north
2. A pitcher delivers a fast ball with a velocity of 43 m/s to the south. The batter hits the ball and gives it a
velocity of 51 m/s to the north. What was the average acceleration of the ball during the 1.0 ms when it
was in contact with the bat?
Ans: 9.4 * 10¹ m/s², north
3. A train with a constant velocity of +28.6 m/s approaches a small town. The operator applies the brake,
reducing the train's velocity to +11.4 m/s. If the average acceleration of the train during braking is −1.35
m/s², for what elapsed time does the operator apply the brake?
Ans: 12.7 s
4. A cheetah is walking at a speed of 1.15 m/s when it observes a gazelle 43.0 m directly ahead. If the cheetah
accelerates at 9.25 m/s², how long does it take the cheetah to reach the gazelle if the gazelle doesn't move?
Ans: 2.93 s
Use the following to answer questions 5-7.
A ball is shot straight up from the surface of the earth with an initial speed of 19.6 m/s.
Neglect any effects due to air resistance.
5. What is the magnitude of the ball's displacement from the starting point after 1.00 second has elapsed?
Ans: 14.7 m
6. What maximum height will the ball reach?
Ans: 19.6 m
7. How much time elapses between the throwing of the ball and its return to the original launch point?
Ans: 4.00 s
Transcribed Image Text:1. A landing airplane makes contact with the runway with a speed of 75.0 m/s and moves toward the south. After 18.5 seconds, the airplane comes to rest. What is the average acceleration of the airplane during the landing? Ans: 4.05 m/s², north 2. A pitcher delivers a fast ball with a velocity of 43 m/s to the south. The batter hits the ball and gives it a velocity of 51 m/s to the north. What was the average acceleration of the ball during the 1.0 ms when it was in contact with the bat? Ans: 9.4 * 10¹ m/s², north 3. A train with a constant velocity of +28.6 m/s approaches a small town. The operator applies the brake, reducing the train's velocity to +11.4 m/s. If the average acceleration of the train during braking is −1.35 m/s², for what elapsed time does the operator apply the brake? Ans: 12.7 s 4. A cheetah is walking at a speed of 1.15 m/s when it observes a gazelle 43.0 m directly ahead. If the cheetah accelerates at 9.25 m/s², how long does it take the cheetah to reach the gazelle if the gazelle doesn't move? Ans: 2.93 s Use the following to answer questions 5-7. A ball is shot straight up from the surface of the earth with an initial speed of 19.6 m/s. Neglect any effects due to air resistance. 5. What is the magnitude of the ball's displacement from the starting point after 1.00 second has elapsed? Ans: 14.7 m 6. What maximum height will the ball reach? Ans: 19.6 m 7. How much time elapses between the throwing of the ball and its return to the original launch point? Ans: 4.00 s
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Displacement, velocity and acceleration
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Physics for Scientists and Engineers with Modern …
Physics for Scientists and Engineers with Modern …
Physics
ISBN:
9781337553292
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
College Physics
College Physics
Physics
ISBN:
9781938168000
Author:
Paul Peter Urone, Roger Hinrichs
Publisher:
OpenStax College
Physics for Scientists and Engineers: Foundations…
Physics for Scientists and Engineers: Foundations…
Physics
ISBN:
9781133939146
Author:
Katz, Debora M.
Publisher:
Cengage Learning
College Physics
College Physics
Physics
ISBN:
9781285737027
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
Physics for Scientists and Engineers, Technology …
Physics for Scientists and Engineers, Technology …
Physics
ISBN:
9781305116399
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning