Year 12s: what will be the first way you research your future options? >>

can someone help

(a) Give an equation for the frequency, f, of the oscillations of a simple pendulum in terms of its length, l, and the acceleration due to gravity, g.______________________________________________________________________________________________________________________________________State the condition under which this equation applies.______________________________________________________________________________________________________________________________________(2)(b) The bob of a simple pendulum, of mass 1.2 × 10–2 kg, swings with an amplitude of 51 mm. It takes 46.5 s to complete 25 oscillations. Calculate(i) the length of the pendulum,______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________(ii) the magnitude of the restoring force that acts on the bob when at its maximum displacement.______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________(6)

Reply 1

Pangol

Original post by QIUY1

Have you just cut and pasted a homework question? You need to give us some idea of what you have tried and where you are having problems.

This is clearly a question about simple harmonic motion. Is there anything you know that can help you? The very first part is a good place to start - this is given in many A level data booklets, but if it is not in your case, it will undoubtedly be covered in your text book.