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A80 A compressed spring is used to propel a ball- bearing along a track which contains a circular loop of radius U.10m in a vertical planc. The spring obeys Hooke's luw and requires a force ol 0.20 N to compreis it 1.0 mm. 0.10m (a) The spring is compressed by 30 mm. Culculate the energy stored in the spring. (i) A bal-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 loop, (iii) the force exerted on the ball by the track at the top of the loop. Assume that the effects of friction can be iguoted. IJ. '89]

A80 A compressed spring is used to propel a ball- bearing along a track which contains a circular loop of radius U.10m in a vertical planc. The spring obeys Hooke's luw and requires a force ol 0.20 N to compreis it 1.0 mm. 0.10m (a) The spring is compressed by 30 mm. Culculate the energy stored in the spring. (i) A bal-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 loop, (iii) the force exerted on the ball by the track at the top of the loop. Assume that the effects of friction can be iguoted. IJ. '89]

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 60P: A 2.0-kg block starts with a speed of 10 m/s at the bottom of a plane inclined at 37 to the...
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Answer b(i), (ii) & (iii)

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]
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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