https://instructional-resources.physics.uiowa.edu/1m1016-lift-or-carry-block
1M10.16 - Lift or Carry a Block | Instructional Resources and Lecture Demonstrations - Department...
Code Number: 1M10.16Demo Title: Lift or Carry a BlockCondition: GoodPrinciple: WorkArea of Study: MechanicsEquipment: A large block or book.Procedure:Lift a...