A 60-kg farmer wearing a rubber boots sinks slightly as he stands over on a pile of rice hull because the compressive stress between his rubber boots and the rice hull is larger than the rice hull can support without crumbling. If he steps on a 2-meter long and 1- meter wide wooden board or platform, calculate the percentage reduction in stress applied to the rice hull when stepping on the wooden board or platform instead of just wearing a rubber boots. Assume contact area of a single rubber boot to be 115 sq. cm.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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· A 60-kg farmer wearing a rubber boots sinks slightly as he stands over on a pile of rice
hull because the compressive stress between his rubber boots and the rice hull is larger
than the rice hull can support without crumbling. If he steps on a 2-meter long and 1-
meter wide wooden board or platform, calculate the percentage reduction in stress
applied to the rice hull when stepping on the wooden board or platform instead of just
wearing a rubber boots. Assume contact area of a single rubber boot to be 115 sq. cm.
Transcribed Image Text:· A 60-kg farmer wearing a rubber boots sinks slightly as he stands over on a pile of rice hull because the compressive stress between his rubber boots and the rice hull is larger than the rice hull can support without crumbling. If he steps on a 2-meter long and 1- meter wide wooden board or platform, calculate the percentage reduction in stress applied to the rice hull when stepping on the wooden board or platform instead of just wearing a rubber boots. Assume contact area of a single rubber boot to be 115 sq. cm.
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