A 0.8 kg ball B is traveling around in a circle of radius r1 = 3 m with a speed vi = 2 m/s, If the attached cord is pulled down through the hole with a constant speed v, = 1 m/s at the instant r2 = 2 m How much work has to be done to pull down the cord? Neglect friction and the size of the ball.
A 0.8 kg ball B is traveling around in a circle of radius r1 = 3 m with a speed vi = 2 m/s, If the attached cord is pulled down through the hole with a constant speed v, = 1 m/s at the instant r2 = 2 m How much work has to be done to pull down the cord? Neglect friction and the size of the ball.
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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Question
![11:30 C78
A 0.8 kg ball B is traveling
around in a circle of radius
T1 = 3 m with a
vi = 2 m/s, If the attached
cord is pulled down through
speed
the hole with a constant
speed v, = 1 m/s at the
2 m How much
%3D
instant r2
%3D
work has to be done to pull
down the cord? Neglect
friction and the size of the
ball.
a. 0,76
=3 m
b. 1.66,
(ra =2 m/s
c. 2.40
= 1.0 m/s
d. 2.97
e. 0.42
Clear my choice
Next page
II](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F73168c69-42b1-49e9-8328-925ae07b40cb%2Fd5d429df-c1e0-426d-b3e6-49ed16b3d045%2F4vu03l_processed.jpeg&w=3840&q=75)
Transcribed Image Text:11:30 C78
A 0.8 kg ball B is traveling
around in a circle of radius
T1 = 3 m with a
vi = 2 m/s, If the attached
cord is pulled down through
speed
the hole with a constant
speed v, = 1 m/s at the
2 m How much
%3D
instant r2
%3D
work has to be done to pull
down the cord? Neglect
friction and the size of the
ball.
a. 0,76
=3 m
b. 1.66,
(ra =2 m/s
c. 2.40
= 1.0 m/s
d. 2.97
e. 0.42
Clear my choice
Next page
II
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