A steel lift column in a service station is a solid cylinder 4.0 m long and 0.20 m in diameter. Young's modulus for this steel is 20 × 1010 N/m2. By what distance does the column compress when a 5000-kg truck is on it?
A) 4.7 × 10-7 m
B) 8.0 × 10-7 m
C) 3.2 × 10-6 m
D) 7.8 × 10-6 m
E) 3.1 × 10-5 m
Answer: E
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a.
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