Young's Modulus: A 1200-kg car is being raised with a constant acceleration of 2.53 m/s2 by a crane, using a 20-m long steel cable that is 1.5 cm in diameter. Young's modulus for steel is 2.0 × 1011 N/m2. What is the change in length of the cable caused by lifting the car?
A. 8.4 mm
B. 8.4 cm
C. 4.9 mm
D. 4.9 cm
E. 4.9 m
Answer: A
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