This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A football kicker is attempting a field goal from 44m out. The ball is kicked and just clears the ... (Read 64 times)

Evvie72

  • Hero Member
  • *****
  • Posts: 519
on: Jul 29, 2018
A football kicker is attempting a field goal from 44m out. The ball is kicked and just clears the lower bar with a time of flight of 2.9s If the angle of the kick was 45, what was the initial speed of the ball, assuming no air resistance?
 
  A) 39 m/s B) 2.2 m/s C) 21.5 m/s D) 19.7 m/s

Question 2

A marble moving 1.48 m/s rolls off the top edge of a 125-cm high table in a room where there is no appreciable air resistance and the free-fall acceleration is 9.80 m/s2. Neglect effects of air.
 
  (a) How far from the base of the table will it strike the floor? (b) How long will it be in the air?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cuttiesgirl16

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

(a) 75.0 cm (b) 0.505 s


Evvie72

  • Member
  • Posts: 519
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

kthug

  • Member
  • Posts: 332
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

A killer whale plays with a ball of ice, soon after a researcher had thrown a snowball at the whale. A killer whale plays with a ball of ice, soon after a researcher had thrown a snowball at the whale.
Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror
Earth’s Magnetic Field Earth’s Magnetic Field
Client’s view with visual field loss Client’s view with visual field loss
A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30 below the horizontal ... A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30 below the horizontal ...
Ethanol has the molecular formula C2H6O. Which ball and stick model shown above represents ... Ethanol has the molecular formula C2H6O. Which ball and stick model shown above represents ...
Video: Plant Defense Mechanisms from Pathogens

For a complete list of videos, visit our video library