A lump of plasticine weighing 200 g is thrown at an angle of 30° and at a speed of 16 m/s towards the 20 m distant concrete facade of the apartment block so that the lump adheres to the facade for a short time and then falls to the floor. How big is the mechanical energy of the lump just before the collision and how big just after it? How much of the mechanical energy has been converted into other forms of energy (heat)?
A lump of plasticine weighing 200 g is thrown at an angle of 30° and at a speed of 16 m/s towards the 20 m distant concrete facade of the apartment block so that the lump adheres to the facade for a short time and then falls to the floor. How big is the mechanical energy of the lump just before the collision and how big just after it? How much of the mechanical energy has been converted into other forms of energy (heat)?
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter11: Energy And Its Conservation
Section: Chapter Questions
Problem 82A
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A lump of plasticine weighing 200 g is thrown at an angle of 30° and at a speed of 16 m/s towards the 20 m distant concrete facade of the apartment block so that the lump adheres to the facade for a short time and then falls to the floor. How big is the mechanical energy of the lump just before the collision and how big just after it? How much of the mechanical energy has been converted into other forms of energy (heat)?
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