A javelin thrower standing at rest holds the center of the javelin behind her head, then...
A javelin thrower standing at rest holds the center of the javelin behind her head, then accelerates it through a distance of 70 cm as she throws. She releases the javelin 2.0 m above the ground traveling at an angle of 30 ∘ above the horizontal. Top-rated javelin throwers do throw at about a 30 ∘ angle, not the 45 ∘ you might have expected, because the biomechanics of the arm allow them to throw the javelin much faster at 30 ∘ than they would be able to at 45 ∘ . In this throw, the javelin hits the ground 56 m away.What was the acceleration of the javelin during the throw? Assume that it has a constant acceleration.
Homework Answers
Concept: we use kinematics equation to find the initial velocity of release which would be the final velocity for the 70 cm journey from rest for the javelin in her hand before the throw,
***************************************************************************************************
This concludes the answers. If there is any mistake,
let me know immediately and I will fix
it....
Add Answer to:
A javelin thrower standing at rest holds the center of the javelin behind her head, then...
A javelin thrower standing at rest holds the center through a distance of 70 cm as...
A javelin thrower standing at rest holds the center through a distance of 70 cm as she throws. She angle, not the 45 you might have expected would be able to at 45. In this throw, the javelin hits the ground 72 m away Units aValue Pearsorn
8:38 < Notes Question : 56 Please explain step by step to I understand. ED o...
8:38 < Notes Question : 56 Please explain step by step to I understand. ED o physics, you ask one of the archers to shoot an arrow parallel to the ground. You find the arrow stuck in the ground 60 m away, making a 3.0° angle with the ground. How fast was the arrow shot? 55. || You're 6.0 m from one wall of the house seen in FIGURE P4.55. You want to toss a ball to your friend who...
An airplane accelerates uniformly from rest. A physicist passenger holds up a thin string of negligible...
An airplane accelerates uniformly from rest. A physicist passenger holds up a thin string of negligible mass to which she has tied her ring, which has a mass m. She notices that as the plane accelerates down the runway, the string makes an angle 0 with the vertical as shown above. 56. In the space below, draw a free-body diagram of the ring, showing and labeling all the forces present. (a) The plane reaches a takeoff speed of 65 m/s...
A mischievous SUOC student has climbed on the roof of a snow-covered building and is trying to hit her friend with snowballs as he walks through the Quad. She throws them at an angle of 20◦ above the...
A mischievous SUOC student has climbed on the roof of a snow-covered building and is trying to hit her friend with snowballs as he walks through the Quad. She throws them at an angle of 20◦ above the horizontal at a speed of v0 = 5 m/s. The building has a height h = 6 m. He decides to throw a snowball back at her. He’s standing a distance d from the side of the building, and throws a snowball...
While standing stationary and writing on a patient’s chart, a doctor drops her pen. What can...
While standing stationary and writing on a patient’s chart, a doctor drops her pen. What can we say about the pen’s motion after she drops it? Ignore air resistance. A. Its velocity is constant. B. The magnitude of its velocity is decreasing. C. The magnitude of its acceleration is increasing. D. Its acceleration is constant. Janelle throws a 0.20 kg apple directly upwards with initial speed 16 m/s. Assuming we can ignore air resistance, what will be the height of...
you are given 4 vectors with equal magnitudes. under what conditions will their sum be zero?...
you are given 4 vectors with equal magnitudes. under what conditions will their sum be zero? if a vector has an equal, positive x and y components, what are the angles it makes with the axes? A superhero jumped horizontally from a 31 m high rooftop to the ground immediately after he spotted a child walking towards a busy street all alone. Fortunately, he lands on the street just next to the child in 2.5s and the child is rescued!...
39. (4 pts) A 500-g mass drops from a height of 10.0 meters. What is its...
39. (4 pts) A 500-g mass drops from a height of 10.0 meters. What is its speed just before it hits the ground? 40. (4 pts) A flight attendant pulls a wheeled suitcase, applying a 66-N force at a 35° angle to the horizontal. How much work does she do in pulling the suitcase 45 m? 41. (4 pts) A 1525-kg car drives up a mountain road a vertical rise of 1301 m from the base elevation in 30. min...
Instructions for PHY 2048 Problem Set (PSET): (1) Please NEATLY write your name and your solutions....
Instructions for PHY 2048 Problem Set (PSET): (1) Please NEATLY write your name and your solutions. (2) You must use blank 8"x11" printer paper. (3) Begin each problem on a new page, and put your name on each page. Staple your pages together. 4) Only write on one side of the page. (5) You must write up your solutions independently (i.e. don't copy anyone else's solutions), using your own words and thought process. You must show all of your work....
What is the momentum of a 108-kilogram fullback moving at 5.60 m/s ? A 605 kg...
What is the momentum of a 108-kilogram fullback moving at 5.60 m/s ? A 605 kg • m/s B. 19.3 kg • m/s C. 0.0519 kg. m/s D. 1690 kg . m/s 33. (1 point) Why do dishes remain on a table if the slick tablecloth under them is pulled rapidly 14. (2 pts) Compare the concepts "mass" and "weight". 35. (2 pt) Will a golf ball and a sheet of paper dropped from a bridge simultaneously strike the water...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on Earth. What will the traveler weight on another planet whose radius is 3 times that of the Earth and whose mass is also 9 times that of the Earth. Do not use any numerical values of the universal gravitational constant G, the mass of Earth, or the radius of Earth to get your answer. 2. Two skaters, a man and a woman, are standing...
A javelin thrower standing at rest holds the center through a distance of 70 cm as she throws. She angle, not the 45 you might have expected would be able to at 45. In this throw, the javelin hits the ground 72 m away Units aValue Pearsorn
8:38 < Notes Question : 56 Please explain step by step to I understand. ED o physics, you ask one of the archers to shoot an arrow parallel to the ground. You find the arrow stuck in the ground 60 m away, making a 3.0° angle with the ground. How fast was the arrow shot? 55. || You're 6.0 m from one wall of the house seen in FIGURE P4.55. You want to toss a ball to your friend who...
An airplane accelerates uniformly from rest. A physicist passenger holds up a thin string of negligible mass to which she has tied her ring, which has a mass m. She notices that as the plane accelerates down the runway, the string makes an angle 0 with the vertical as shown above. 56. In the space below, draw a free-body diagram of the ring, showing and labeling all the forces present. (a) The plane reaches a takeoff speed of 65 m/s...
39. (4 pts) A 500-g mass drops from a height of 10.0 meters. What is its speed just before it hits the ground? 40. (4 pts) A flight attendant pulls a wheeled suitcase, applying a 66-N force at a 35° angle to the horizontal. How much work does she do in pulling the suitcase 45 m? 41. (4 pts) A 1525-kg car drives up a mountain road a vertical rise of 1301 m from the base elevation in 30. min...
Instructions for PHY 2048 Problem Set (PSET): (1) Please NEATLY write your name and your solutions. (2) You must use blank 8"x11" printer paper. (3) Begin each problem on a new page, and put your name on each page. Staple your pages together. 4) Only write on one side of the page. (5) You must write up your solutions independently (i.e. don't copy anyone else's solutions), using your own words and thought process. You must show all of your work....
What is the momentum of a 108-kilogram fullback moving at 5.60 m/s ? A 605 kg • m/s B. 19.3 kg • m/s C. 0.0519 kg. m/s D. 1690 kg . m/s 33. (1 point) Why do dishes remain on a table if the slick tablecloth under them is pulled rapidly 14. (2 pts) Compare the concepts "mass" and "weight". 35. (2 pt) Will a golf ball and a sheet of paper dropped from a bridge simultaneously strike the water...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on Earth. What will the traveler weight on another planet whose radius is 3 times that of the Earth and whose mass is also 9 times that of the Earth. Do not use any numerical values of the universal gravitational constant G, the mass of Earth, or the radius of Earth to get your answer. 2. Two skaters, a man and a woman, are standing...
Most questions answered within 3 hours.
-
Please comment on the sentences.
Some types of jobs require more training than others. Some
companies...
asked 51 minutes ago -
The )G01 for the hydrolysis of phosphorarginine
reaction depicted below is –32 kJ mol-1.
Phosphoarginine ...
asked 1 hour ago -
Cross a heterozygous blue-eyed goat with a homozygous brown-eyed
goat. Be sure to indicate which kids...
asked 1 hour ago -
Use the following information to answer the next two
questions.
Please refer to question 9-90. A...
asked 2 hours ago -
A solution containing 0.050 g of an unknown electrolyte in 2.50
g of cyclohexane was found...
asked 2 hours ago -
Question 1
a) Hydraulic conductivity of soils is an important parameter for
the design of engineering...
asked 2 hours ago -
Suppose your credit card balance is
$15,000
The minimum payment is
$313
and the annual percentage...
asked 2 hours ago -
Professor plays basketball and makes 75% of free
throws she shoots. If professor shot 5 free...
asked 2 hours ago -
Create an ArrayListReview class with one generic type to do the
following
• Creates an array...
asked 2 hours ago -
Two thermic power plants have the following marginal and total
cost of abatement of nitrogen oxide...
asked 2 hours ago -
Which of the following statements does not correctly describe an
adjustment to net income when determining...
asked 2 hours ago -
A sample of argon gas has a volume of 735 mL at a pressure of
1.20...
asked 2 hours ago