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 17 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
Great answer, keep it coming :)

AISCAMPING

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

A pair of humpback whales lunge feeding through a bait ball A pair of humpback whales lunge feeding through a bait ball
The Tsavo Man-Eaters on display in the Field Museum of Natural History in Chicago, Illinois. The Tsavo Man-Eaters on display in the Field Museum of Natural History in Chicago, Illinois.
Field Spaniel Field Spaniel
Examples of goal setting Examples of goal setting
Aspergillosis fungal ball in the right lung. Aspergillosis fungal ball in the right lung.
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 ...
Video: How antibiotics works? 💊

For a complete list of videos, visit our video library