College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Related questions
Concept explainers
Topic Video
Question
1. How far did the pumpkin fall-freely?
2. What was the pumpkin's maximum speed?
3. What was the total time required for the pumpkin to hit the ground?
Transcribed Image Text:←
Unit 3: Freefall X p Positive Physics X
AP Classroom X
PREMIUM
positivephysics
A student drops a pumpkin out of a helicopter from a height of 420m.
Approximate the motion by assuming that the pumpkin falls freely for the first
4.00s then maintains a consant velocity until hitting the ground.
My AP Login X
https://www.positivephysics.org/lesson/physics/free-fall/challenge?courseID=1&unitID=9&skillID=57...
Dashboard
How far did the pumpkin fall-freely?
m
What was the pumpkin's maximum speed?
m/s
What was the total time required for the pumpkin to hit the ground?
Unit 3: Free-Fall, Challenge Using g = 10m/s² Keep 3+ sig figs Desmos Calculator
77°F
Sunny
Q
Stanford Comm x
Check Answers
Steve Jobs Con X
O
Copy of Steve
h
G
X +
gabrielk
T
Completion: 50%
Accuracy: 46%
Reference Lesson 1 2
Cannot Be Solved
3
5:53 PM
10/4/2022
X
⠀
4
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps
Knowledge Booster
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
- The trap-jaw ant, found throughout tropical South America, catches its prey by very rapidly closing its mandibles around its victim. Shown is the speed of one of its mandible jaws versus time in microseconds. a. What is the maximum acceleration of the ant’s mandible? b. The mass of a trap-jaw ant’s mandible has been estimated to be about 1.3 x 10-7 kg. Estimate the maximum force exerted by one mandible.arrow_forward3. A jet plane has a takeoff speed of Vtakeoff = 60 m/s and can move along the runway at an average acceleration of 2.0 m/s². The runway is 1.5 km. a. Write out the 3 Kinetic equations. 2. v2-U2= Jas 3.5=uttata2 b. Write out the values of initial position, initial velocity, and acceleration. initial position uloity- a: 0.2m/s init.al aueleradion- How many seconds will it take for the plane to reach takeoff speed? С. d. How far will the plane have to travel to get to takeoff speed? e. will the plane be able to get to 60 m/s before it gets to the end of the runway?arrow_forward1. At time t = 0.0 s, a steel ball is thrown vertically downwards from the top of a tall tower with a velocity of 2.0 m/s. = 3.0 s. 2.0 s and t = Calculate the distance it falls between the period of t (You may ignore air resistance. Take the acceleration due to gravity to be 10.0 m/s.)arrow_forward
- 4. You throw your keys straight up into the air. At each of the following instants, is the key's acceleration g, - g, 0, g? a. Just after leaving your hand? b. At the very top (maximum height)? c. Just before hitting the ground?arrow_forward4. Marcus throws a rock straight up into the air. It leaves his hand 1.2 meters above the ground, and it hits the ground 3.5 seconds later. Find a. the initial speed of the rock when it leaves his hand b. the maximum height the rock reaches before falling back down, relative to the ground c. the speed of the rock right before it hits the groundarrow_forward9: An archer fires an arrow straight up into the air with a speed v0=35.6m/s. Neglect air resistance. a. Find the maximum height, hℎ, in meters, reached by the arrow. b. In terms of known quantities, write an expression for the time the arrow is in the air until it returns to launch height.arrow_forward
- You and a friend ride your bikes to a restaurant across town. Both of you start at the same instant from your house, you riding 10 m/s and your friend riding 12 m/s. During the trip your friend has a flat tire and that takes him 8 minutes to fix. He then continues the trip at the same speed of 12 m/s. If the distance to the restaurant is 10 km, who gets there first?arrow_forward8. A 200 kg weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 30 m/s² for 30 s, then runs out of fuel. Ignore any air resistance effects. (a) What is the rocket's maximum altitude? (b) How long is the rocket in the air before hitting the ground?arrow_forward. (a) A car is traveling over a circular hill with a speed v. Its weight, mg, and normal force N are shown in the figure below. What is the centripetal force Fr mg, and v. in this case? Express the answer in terms of N, r,net Choices: A. F = N - mg r,net B. F r, net C. F ✓ A B r, net = mg - N = mg D. F = N r,net x A. mg = N N (b) Under what conditions will the car be able to go over the hill? X ! No, that's not the correct answer. mgarrow_forward
- A jet plane lands with a speed of 145 m/s and can accelerate at a maximum rate of -7.00 m/?2 as it comes to rest. a. From the instant the plane touches the runway, what is the minimum time interval needed before it can come to rest? b. Can this plane land on a small tropical island airport where the runway is 0.9 km long? Why?arrow_forwardA spring gun that is mounted at the edge of a 2.0-m-high table launches a steel ball at an angle of 230 above the horizontal with an initial speed of 7.0 m/s. What is the total time of flight of the steel ball? (Assume that g = 9.81 m/s2.) a. 0.80 s b. 0.60 s c. 0.40 s d. 1.0 s e. 1.2 sarrow_forwardQ. A woodpecker's brain is specially protected from large decelerations by tendon-like attachments inside the skull. While pecking on a tree, the woodpecker's head comes to a stop from an initial velocity of 0.565 m/s in a distance of only 2.15 mm. a. Find the acceleration in m/s² b. Find the acceleration in multiples of g (g = 9.80 m/s2) This means that you want to determine how much bigger the acceleration you calculated in part a is compared to the acceleration due to gravity, c. Calculate the stopping time (in s).arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press 
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON