Bank robbers have pushed a 1000 kg safe to a second-story floorto- ceiling window. They plan to break the window, then lower the safe 3.0 m to their truck. Not being too clever, they stack up 500 kg of furniture, tie a rope between the safe and the furniture, and place the rope over a pulley. Then they push the safe out the window. What is the safe’s speed when it hits the truck? The coefficient of kinetic friction between the furniture and the floor is 0.50.

Bank robbers have pushed a 1000 kg safe to a second-story floorto- ceiling window. They plan to break the window, then lower the safe 3.0 m to their truck. Not being too clever, they stack up 500 kg of furniture, tie a rope between the safe and the furniture, and place the rope over a pulley. Then they push the safe out the window. What is the safe’s speed when it hits the truck? The coefficient of kinetic friction between the furniture and the floor is 0.50.

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 7OQ: A block of mass m is dropped from the fourth floor of an office building and hits the sidewalk below...

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