In the figure, a block of mass m = 1.40 kg slides head on into a spring of spring constant k = 220 N/m. When the block stops, it has compressed the spring by 14.0 cm. The coefficient of kinetic friction between block and floor is 0.280. While the block is in contact with the spring and being brought to rest, what are (a) the work done by the spring force and (b) the increase in thermal energy of the block-floor system? (c) What is the block's speed just as the block reaches the spring?

University Physics Volume 1
18th Edition
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Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter8: Potential Energy And Conservation Of Energy
Section: Chapter Questions
Problem 79AP: Consider a block of mass 0.200 kg attached to a spring of spring constant 100 N/m. The block is...
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In the figure, a block of mass m = 1.40 kg slides head on into a spring of spring constant k = 220 N/m. When the block
stops, it has compressed the spring by 14.0 cm. The coefficient of kinetic friction between block and floor is 0.280.
While the block is in contact with the spring and being brought to rest, what are (a) the work done by the spring force
and (b) the increase in thermal energy of the block-floor system? (c) What is the block's speed just as the block reaches
the spring?
(a) Number
(b) Number
i
i
(c) Number i
Units
Units
Units
4
←
Transcribed Image Text:In the figure, a block of mass m = 1.40 kg slides head on into a spring of spring constant k = 220 N/m. When the block stops, it has compressed the spring by 14.0 cm. The coefficient of kinetic friction between block and floor is 0.280. While the block is in contact with the spring and being brought to rest, what are (a) the work done by the spring force and (b) the increase in thermal energy of the block-floor system? (c) What is the block's speed just as the block reaches the spring? (a) Number (b) Number i i (c) Number i Units Units Units 4 ←
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