A 3-kg block is hanging in equilibrium from a coil spring of diameter 5 cm made from a steel rod of diameter 5 mm. The shear modulus of the spring's material is G = 80 × 10° N/m and the spring has 25 active coils. A weight W is dropped from 20 cm onto the block. On impact the weight attaches itself to the block. What is the largest weight that can be dropped such that the spring's elastic shear strength of 100 x 106 N/m² is not exceeded?

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
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Chapter7: Dry Friction
Section: Chapter Questions
Problem 7.50P: The block of weight W is pulled by the force P inclined at the angle to the horizontal. Find the...
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2.41. A3-kg block is hanging in equilibrium from a coil spring of diameter 5 cm made from a steel
rod of diameter 5 mm. The shear modulus of the spring's material is G = 80 × 10° N/m?
and the spring has 25 active coils. A weight W is dropped from 20 cm onto the block.
On impact the weight attaches itself to the block. What is the largest weight that can be
dropped such that the spring's elastic shear strength of 100 x 106 N/m2 is not exceeded?
Transcribed Image Text:2.41. A3-kg block is hanging in equilibrium from a coil spring of diameter 5 cm made from a steel rod of diameter 5 mm. The shear modulus of the spring's material is G = 80 × 10° N/m? and the spring has 25 active coils. A weight W is dropped from 20 cm onto the block. On impact the weight attaches itself to the block. What is the largest weight that can be dropped such that the spring's elastic shear strength of 100 x 106 N/m2 is not exceeded?
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