Homework Clinic

Science Clinic => Physics => Topic started by: mydiamond on Jul 28, 2018

Title: You throw a Frisbee of mass m and radius r so that it is spinning about a horizontal axis ...
Post by: mydiamond on Jul 28, 2018

You throw a Frisbee of mass m and radius r so that it is spinning about a horizontal axis perpendicular to the plane of the Frisbee. Ignoring air resistance, the torque exerted about its center of mass by gravity is
   
  a.
  0.
   
  b.
  mgr.
   
  c.
  2mgr.
   
  d.
  a function of the angular velocity.
   
  e.
  small at first, then increasing as the Frisbee loses the torque given it by your hand.

Question 2

The graphs below show angular velocity as a function of time. In which one is the magnitude of the angular acceleration constantly decreasing?
   
  a.
 
  b.
 
  c.
 
  d.
 
  e.
 

Title: You throw a Frisbee of mass m and radius r so that it is spinning about a horizontal axis ...
Post by: tandmlomax84 on Jul 28, 2018

Answer to Question 1

a

Answer to Question 2

e

Title: You throw a Frisbee of mass m and radius r so that it is spinning about a horizontal axis ...
Post by: mydiamond on Jul 28, 2018

TY

Title: You throw a Frisbee of mass m and radius r so that it is spinning about a horizontal axis ...
Post by: tandmlomax84 on Jul 28, 2018

You're welcome