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

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 152 times)

yoroshambo

  • Hero Member
  • *****
  • Posts: 566
on: Jul 28, 2018
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
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

B


yoroshambo

  • Hero Member
  • *****
  • Posts: 566
Reply #2 on: Jul 28, 2018
TY


livaneabi

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

By reflecting most visible light, snow creates a much cooler microclimate than nearby bare ground. By reflecting most visible light, snow creates a much cooler microclimate than nearby bare ground.
Substrate–level phosphorylation. Substrate–level phosphorylation.
Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T
A typical ball-peen hammer. A typical ball-peen hammer.
Using a vacuum hose and a test light to ground one cylinder at a time on a distributorless ignition ... Using a vacuum hose and a test light to ground one cylinder at a time on a distributorless ignition ...
A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ... A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ...
Video: Fetal development - Weeks 9 to 38

For a complete list of videos, visit our video library