Question
Physics Question on Hooke's Law
Two persons are pulling a rope towards themselves with a force of 200 N each. If the Young's modulus is 2 x 1011 N/m2 and area of cross-section is 2 cm2 for the rope, the elongation in the rope is ____.
(distance between the persons holding the ropes is 2 m.)
A
10 μm
B
20 μm
C
5 μm
D
40 μm
Answer
10 μm
Explanation
Solution
The Correct answer is option is (A) : 10 μm