1. A person opens a 7.25 kg door by applying a force of 12.5N perpendicular to it at a point 0.85 m from the hinges. The door measures 2.25 m high and 1.15 m wide. Find the angular acceleration of the door. If the door is pushed wide open by 75,0° in 2.0 s, find the work done on the door and the power delivered to the door.

1. A person opens a 7.25 kg door by applying a force of 12.5N perpendicular to it at a point 0.85 m from the hinges. The door measures 2.25 m high and 1.15 m wide. Find the angular acceleration of the door. If the door is pushed wide open by 75,0° in 2.0 s, find the work done on the door and the power delivered to the door.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter6: Energy Of A System

Section: Chapter Questions

Problem 12P

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