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

Author Question: A box is launched up a frictionless incline with an angle of elevation . The maximum height reached ... (Read 100 times)

burchfield96

  • Hero Member
  • *****
  • Posts: 610
on: Jul 28, 2018
A box is launched up a frictionless incline with an angle of elevation . The maximum height reached by the box is h. The box is again launched up the incline with the same initial speed it had before, but this time the angle of elevation has been increased to . How does the maximum height H reached this time by the box compare with the previous value h?
 a. H = h b. H > h
  c. H < h d. H = ((sin)/(sin))

Question 2

A girl and her bicycle have a total mass of 42 kg. At the top of the hill her speed is 4.00 m/s. The hill is 14.3 m high and 112 m long. If the force of friction as she rides down the hill is 20 N, what is her speed at the bottom?
 a. 4.00 m/s
  b. 15.8 m/s
  c. 13.8 m/s
  d. 63.1 m/s
  e. She stops before she reaches the bottom.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

johnharpe

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

c


burchfield96

  • Hero Member
  • *****
  • Posts: 610
Reply #2 on: Jul 28, 2018
Thanks


johnharpe

  • Sr. Member
  • ****
  • Posts: 338
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

The world has been horrified recently at a U.S. Congress so polarized and paralyzed that it cannot p The world has been horrified recently at a U.S. Congress so polarized and paralyzed that it cannot p
a) Appropriate chair height b) Chair is too low c) Chair is too high a) Appropriate chair height b) Chair is too low c) Chair is too high
Agonists, partial agonists, and antagonists: (a) An agonist results in maximum response. (b) A ... Agonists, partial agonists, and antagonists: (a) An agonist results in maximum response. (b) A ...
Relationship of Sun Angle and Solar Radiation Relationship of Sun Angle and Solar Radiation
An additive model for the inheritance of height in the Potsdam Guards. In this example, the guards a An additive model for the inheritance of height in the Potsdam Guards. In this example, the guards a
Continuous Variation in Height (Females) Continuous Variation in Height (Females)
Video: Barriers - eye structures, digestive mucosa, respiratory mucosa & genitourinary mucosa

For a complete list of videos, visit our video library