Question

there are four springs stretched by the same mass. spring a stretches 25 cm. spring b stretches 10 cm. spring c stretches 100 cm. spring d stretches 1 cm.
which spring is the weakest?

a

b

c

d

Explanation:

Step1: Recall Spring Weakness Concept

A weaker spring stretches more under the same mass (force, by \( F = mg \)). So, we compare stretch lengths.

Step2: Compare Stretch Lengths

Spring A: 25 cm, Spring B: 10 cm, Spring C: 100 cm, Spring D: 1 cm. The largest stretch is 100 cm (Spring C), so it's the weakest.

Answer:

C. Spring C