An object of mass m m\,m is suspended from a vertical spring and set into simple harmonic motion. The period of the resulting oscillations increases by 50% when the mass of the suspended object is increased by 1.25 kg.
What is the original mass m m\,m of the object?
1.0 kg1.0\text{ kg}1.0 kg
1.25 kg1.25\text{ kg}1.25 kg
1.5 kg1.5\text{ kg}1.5 kg
2.5 kg2.5\text{ kg}2.5 kg
45 exam-style questions on AQA A Level Physics Periodic motion (A-level only), covering Circular motion (A-level only), Simple harmonic motion (SHM) (A-level only), Simple harmonic systems (A-level only), and Forced vibrations and resonance (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.