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

Author Question: A car needs to generate in order to maintain a constant velocity of on a flat road. What is the ... (Read 79 times)

strangeaffliction

  • Hero Member
  • *****
  • Posts: 660
A car needs to generate in order to maintain a constant velocity of on a flat road. What is the magnitude of the total resistive force acting on the car (due to friction, air resistance, etc.)? (1 hp = 746 W)
 
  A) 2.05  103 N
  B) 2.75 N
  C) 1.03  103 N
  D) 2.87  103 N

Question 2

How long will it take a 7.08 hp motor to lift a 250 kg beam directly upward at constant velocity from the ground to a height of 45.0 m? Assume frictional forces are negligible. (1 hp = 746 W)
 
  A) 20.9 s
  B) 1.56  104 s
  C) 2.18  104 s
  D) 39.7 s



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

morrie123456

  • Sr. Member
  • ****
  • Posts: 314
Answer to Question 1

Answer: A

Answer to Question 2

Answer: A




strangeaffliction

  • Member
  • Posts: 660
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)


upturnedfurball

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

For a complete list of videos, visit our video library