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Problem Set 10 - Algebra-based Physics I - Fall 2007 | PHYS 2010, Assignments of Physics

Tennessee Technological University (TTU)Physics

Material Type: Assignment; Class: Algebra-based Physics I; Subject: PHYS Physics; University: Tennessee Tech University; Term: Fall 2010;

Typology: Assignments

Pre 2010

Uploaded on 07/30/2009

koofers-user-fm6-1
koofers-user-fm6-1 🇺🇸

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bg1
Name
Phys 2010 (NSCC), Fall 2007
Problem Set #10
1. Convert 16.0 radians to: (a) Revolutions. (b) Degrees.
2. If a rotating object has a constant angular velocity of 8.17 rad
s, how many revolutions does
it make in one minute? (One way to answer this is to convert units, from rad
sto rev
min .)
1
pf3
pf4

Partial preview of the text

Download Problem Set 10 - Algebra-based Physics I - Fall 2007 | PHYS 2010 and more Assignments Physics in PDF only on Docsity!

Name

Phys 2010 (NSCC), Fall 2007 Problem Set #

  1. Convert 16.0 radians to: (a) Revolutions. (b) Degrees.
  2. If a rotating object has a constant angular velocity of 8. 17 rad s , how many revolutions does it make in one minute? (One way to answer this is to convert units, from rad s to (^) minrev .)
  1. A wheel starts rotating from rest and undergoes a constant angular acceleration. (a) In 10 .0 s it makes 75.0 revolutions. What is the angular acceleration of the wheel? (b) What was the angular velocity at the end of the 10.0 s?
  2. An object is rotating at a rate of 130 rad s. It undergoes a constant angular deceleration and comes to rest in 12.0 s. What is the magnitude of the angular acceleration of the object? How many turns did it make in coming to a halt?

45 cm 70 o

21.0 N

45.0 N 60 o

30 cm

20 cm 40 o 8.0 N

  1. Three forces are exerted on a rotating object at the distances and in the directions shown. What is the total torque on the object? (Take “counter-clockwise” to be the positive sense of ro- tation.)

Ye Olde Shoppe

30 o

T

  1. A 300-N sign is suspended from a horizontal 4.00-meter long uniform 100-N rod as indicated at the right. The sign is attached to the rod at a point which is 3.0 m from the wall; The left end of the rod is pivoted and the right end is supported by a thin cable making a 30. 0 ◦^ angle with the vertical. Find the tension T in the cable.