Q: Determine the normal pull (kg) for a tape of 20 m long standardized at a pull of 30 kg. The cross section area of the tape is 0.5 square centimetres, weight of the tape per metre is 20 gm. Take modulus of the elasticity for tape material as 21,00,000 kg per square centimetre.
A.
28
B.
36.8
C.
64
D.
78
Correct Answer:
Option B -
Explanations:
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