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

Author Question: A 4.0-kg mass attached to the end of a string swings in a vertical circle of radius 2.0 m. When the ... (Read 473 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586
on: Jul 28, 2018

A 4.0-kg mass attached to the end of a string swings in a vertical circle of radius 2.0 m. When the string makes an angle of 35 with the vertical as shown, the speed of the mass is 5.0 m/s. At this instant what is the magnitude of the force the string exerts on the mass?
 
   


   
  a.
  50 N
   
  b.
  82 N
   
  c.
  89 N
   
  d.
  11 N
   
  e.
  61 N

Question 2

An object attached to the end of a string swings in a vertical circle (R = 1.2 m), as shown. At an instant when = 30, the speed of the object is 5.1 m/s and the tension in the string has a magnitude of 20 N. What is the mass of the object?
 
   


   
  a.
  2.0 kg
   
  b.
  1.5 kg
   
  c.
  1.8 kg
   
  d.
  1.2 kg
   
  e.
  0.80 kg


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bpool94

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

d


mspears3

  • Hero Member
  • *****
  • Posts: 586
Reply #2 on: Jul 28, 2018
TY


bpool94

  • Sr. Member
  • ****
  • Posts: 354
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i
Chrysler also recommends that a clear plastic hose (1/4" ID) be attached to the bleeder valve ... Chrysler also recommends that a clear plastic hose (1/4" ID) be attached to the bleeder valve ...
Cloud Types: Vertical Development Cloud Types: Vertical Development
The DNA from one chromosome has a mass of ~20 billion Daltons The DNA from one chromosome has a mass of ~20 billion Daltons
How to evaluate angles using cosecant, special triangles, and the unit circle (Part 3) How to evaluate angles using cosecant, special triangles, and the unit circle (Part 3)
A sphere, 0.30 m in radius, has a surface emissivity of 0.48 and is at a temp A sphere, 0.30 m in radius, has a surface emissivity of 0.48 and is at a temp
Video: Atrial natriuretic peptide (vasodilation) & Aldosterone

For a complete list of videos, visit our video library