Jump to content

Torque - Mass on Plank with String

By Flipping Physics, 02/24/2019
  • 1 comment

Example: A 0.300 kg mass rests on a 0.395 m long, 0.764 kg, uniform wooden plank supported by a string as shown in the figure. If the mass is 0.274 m from the wall and the angle between the string and the plank is 32.1°, (a) What is the force of tension in the string? and (b) What is the normal force from the wall? Want Lecture Notes? This is an AP Physics 1 Topic.

Content Times:
0:07 The problem
1:17 The free body diagram
3:45 Net torque
5:41 Substituting in numbers
6:53 Net force
8:02 The demonstration

Next Video: Rolling Without Slipping Introduction and Demonstrations

Multilingual? Please help translate Flipping Physics videos!

Previous Video: 2 Masses on a Pulley - Conservation of Energy Demonstration

Please support me on Patreon!

Thank you to Scott Carter, Christopher Becke, and Jonathan Everett for being my Quality Control Team for this video.

Recommended Comments


Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Create New...