A Skg cannonball was dropped (from rest) fr ne dumbbell as it hits the ground? Here, we Hint: You can set the ground level to be y = aw of Conservation of Mechanical Energy: nechanical energy i.e., the mechanical ene riction or air resistance." mgy + mechanical enermr
A Skg cannonball was dropped (from rest) fr ne dumbbell as it hits the ground? Here, we Hint: You can set the ground level to be y = aw of Conservation of Mechanical Energy: nechanical energy i.e., the mechanical ene riction or air resistance." mgy + mechanical enermr
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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![3.) A 5kg cannonball was dropped (from rest) from a height of 10m above the ground. What is the velocity of
the dumbbell as it hits the ground? Here, we assume that there is no air resistance.
*Hint: You can set the ground level to be y = 0.
Law of Conservation of Mechanical Energy: "The initial mechanical energy is equivalent to the final
mechanical energy i.e., the mechanical energy is constant in the absence of any dissipative force such as
friction or air resistance."
1
mgy; + mv? = mgy, + mvž
1
mechanical energy = potential energy + kinetic energy = mgy + mv2
m
g = magnitude of acceleration due to gravity = 9.81-
s2
Yi = initial height
Yf = final height](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcfc654f0-617d-48b5-a3bd-90184549fdc1%2F81363472-4ef2-4560-b400-1c4c2c643d20%2F4v3enpe_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3.) A 5kg cannonball was dropped (from rest) from a height of 10m above the ground. What is the velocity of
the dumbbell as it hits the ground? Here, we assume that there is no air resistance.
*Hint: You can set the ground level to be y = 0.
Law of Conservation of Mechanical Energy: "The initial mechanical energy is equivalent to the final
mechanical energy i.e., the mechanical energy is constant in the absence of any dissipative force such as
friction or air resistance."
1
mgy; + mv? = mgy, + mvž
1
mechanical energy = potential energy + kinetic energy = mgy + mv2
m
g = magnitude of acceleration due to gravity = 9.81-
s2
Yi = initial height
Yf = final height
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