Q6 of 33 Page 63

A body builder exerts a force of 150 N against a bullworker and compresses it by 20cm. Calculate the spring constant of the spring in the bullworker.

Given –


Force applied to compress the bullworker = 150N


Compressed length = 20cm = 0.2m


We know, the force applied on a string is given by –



Where,


K = spring constant


X= displacement


Substituting the values




Hence, the spring constant is 750 N/m


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