A80 A compressed spring is used to propel a ball- bearing along a track which contains a circular loop of radius 0.10m in a vertical planc. The spring obeys Hooke's law and requires a force of 0.20N to compre:s it 1.0 mm. 0.10 m (2) The spring is compressed by 30 mm. Culculate the energy stored in the spring. (b) A ball-bearing of mass 0.025 kg is placed against the end of the spring which is then released. Calculete (i) the speed with which the ball- bearing leaves the spring, (ii) the speed of the ball at the top of the locp, (iii) the force exerted on the bali by the track at the top of the loop. Assume that the effects of friction can be ignored. [J, '89]
A80 A compressed spring is used to propel a ball- bearing along a track which contains a circular loop of radius 0.10m in a vertical planc. The spring obeys Hooke's law and requires a force of 0.20N to compre:s it 1.0 mm. 0.10 m (2) The spring is compressed by 30 mm. Culculate the energy stored in the spring. (b) A ball-bearing of mass 0.025 kg is placed against the end of the spring which is then released. Calculete (i) the speed with which the ball- bearing leaves the spring, (ii) the speed of the ball at the top of the locp, (iii) the force exerted on the bali by the track at the top of the loop. Assume that the effects of friction can be ignored. [J, '89]
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
![A80 A compressed spring is used to propel a ball-
bearing along a track which contains a circular
loop of radius 0.10m in a vertical planc. The
spring obeys Hooke's law and requires a force
of 0.20 N to compres it 1.0 mm.
0.10 m
(a) The spring is compresied by 30 mm.
Culculate the energy stored in the spring.
(b) A tal-bearing of mass 0.025 kg is placed
against the end of the spring which is then
released. Calculete
(i) the speed with which the ball-
bearing leaves the spring,
(ii) the speed of the bail at the top of the
locp,
(iii) the force exerted on the ball by the
track at the top of the loop.
Assume that the effects of friction can be
ignored.
[J, '89]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5a6d9c67-6f13-49d2-ac4d-2d996f90a88b%2Fc0e77259-514d-4fc1-8a37-1e6f4ef9fdfb%2F88nnuf_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A80 A compressed spring is used to propel a ball-
bearing along a track which contains a circular
loop of radius 0.10m in a vertical planc. The
spring obeys Hooke's law and requires a force
of 0.20 N to compres it 1.0 mm.
0.10 m
(a) The spring is compresied by 30 mm.
Culculate the energy stored in the spring.
(b) A tal-bearing of mass 0.025 kg is placed
against the end of the spring which is then
released. Calculete
(i) the speed with which the ball-
bearing leaves the spring,
(ii) the speed of the bail at the top of the
locp,
(iii) the force exerted on the ball by the
track at the top of the loop.
Assume that the effects of friction can be
ignored.
[J, '89]
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