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

Author Question: As an object of mass 60 kg approaches the bottom of a ramp, point A, its speed is 20 m/s. It goes up ... (Read 84 times)

elizabeth18

  • Hero Member
  • *****
  • Posts: 559
on: Jul 29, 2018
As an object of mass 60 kg approaches the bottom of a ramp, point A, its speed is 20 m/s. It goes up the frictionless plane and turns around at point B. What is the potential energy of this object at point B? Use g = 10 m/s2.
 
  A) 0 J
  B) 6.0  103 J
  C) 9  103 J
  D) 12  103 J
  E) 18  103 J

Question 2

During the time that the acceleration of a particle is constant, its velocity-vs.-time curve is
 
  A) a straight line.
  B) a parabola opening downward.
  C) a parabola opening upward.
  D) a parabola opening toward the left.
  E) a parabola opening toward the right.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

chjcharjto14

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

A


elizabeth18

  • Hero Member
  • *****
  • Posts: 559
Reply #2 on: Jul 29, 2018
TY


chjcharjto14

  • Sr. Member
  • ****
  • Posts: 342
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

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

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

View of the bottom surface of the human brain. View of the bottom surface of the human brain.
Sarah Sze, Triple Point (Pendulum). Sarah Sze, Triple Point (Pendulum).
Surgical needle shapes: (A) taper point; (B) cutting point. Surgical needle shapes: (A) taper point; (B) cutting point.
. Calculate the net electric field at point B . Calculate the net electric field at point B
A triatomic molecule is oriented as follows along the x-axis: atom 1 of mass m is at the ... A triatomic molecule is oriented as follows along the x-axis: atom 1 of mass m is at the ...
A wheel of diameter 0.70 m rolls on the floor without slipping. A point at the top of the wheel ... A wheel of diameter 0.70 m rolls on the floor without slipping. A point at the top of the wheel ...
Video: hGH, Thyroid hormones & Aldosterone

For a complete list of videos, visit our video library