This topic contains a solution. Click here to go to the answer

Author Question: A ball is launched from ground level at 30 m/s at an angle of 25 above the horizontal. How far does ... (Read 71 times)

yoroshambo

  • Hero Member
  • *****
  • Posts: 566
A ball is launched from ground level at 30 m/s at an angle of 25 above the horizontal. How far does it go before it is at ground level again?
 a. 14 m
  c. 43 m
  b. 70 m
  d. 86 m

Question 2

Superguy is flying at treetop level near Paris when he sees the Eiffel Tower elevator start to fall (the cable snapped). His x-ray vision tells him Lois LaTour is inside. If Superguy is 1.00 km away from the tower, and the elevator falls from a height of 2.1  102 m, how long does Superguy have to save Lois, and what must be his average speed?
 a. 4.5 s, 200 m/s
  c. 7.0 s, 140 m/s
  b. 6.5 s, 150 m/s
  d. 9.0 s, 110 m/s



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

livaneabi

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

B

Answer to Question 2

B





 

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

For a complete list of videos, visit our video library