Question 4
A spiral spring has a length of 14 cm when force a force of 4 N is hung on it. A force of 6 N extends the spring by 4 cm. Calculate the upstretched length of the spring.
Observation
Majority of the candidates avoided this question. majority of the interested ones recognized the questions but failed to match extensions with the appropriate force. Many candidates failed to interpret the question correctly.
The expected answer
