A 2-kg solid sphere of radius r 40 mm is dropped from a height h 210 mm and lands on a uniform slender plank AB of mass 4 kg and length L 500 mm which is held by two inextensible cords. Knowing that the impact is perfectly plastic and that the sphere remains attached to the plank at a distance a 40 mm from the left end, determine the velocity of the sphere immediately after impact. Neglect the thickness of the plank 30 30 B The velocity of the sphere immediately after impact is m/s

A 2-kg solid sphere of radius r 40 mm is dropped from a height h 210 mm and lands on a uniform slender plank AB of mass 4 kg and length L 500 mm which is held by two inextensible cords. Knowing that the impact is perfectly plastic and that the sphere remains attached to the plank at a distance a 40 mm from the left end, determine the velocity of the sphere immediately after impact. Neglect the thickness of the plank 30 30 B The velocity of the sphere immediately after impact is m/s

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

A 2-kg solid sphere of radius r 40 mm is dropped from a height h 210 mm and lands on a uniform slender plank AB of mass 4 kg
and length L 500 mm which is held by two inextensible cords. Knowing that the impact is perfectly plastic and that the sphere
remains attached to the plank at a distance a 40 mm from the left end, determine the velocity of the sphere immediately after impact.
Neglect the thickness of the plank
30
30
B.
The velocity of the sphere immediately after Impact is
m/s

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