1615 Joshi is investigating how much a spring stretches when different masses are added. benchbenchbenchclamp &standspringhanging masses(a) What could he use to measure how much the spring stretches?  (b) Before his experiment Joshi thinks that the spring will stretch more if he adds moremasses to the spring. What type of statement is this? Circle the correct answer.
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 (c) When doing his investigation what must Joshi do to keep himself safe?