Simple Harmonic Motion 1 A mass m is suspended from a piece of string of length L to form a pendulum. When displaced fro

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Simple Harmonic Motion 1 A Mass M Is Suspended From A Piece Of String Of Length L To Form A Pendulum When Displaced Fro 1 (23.57 KiB) Viewed 30 times

Simple Harmonic Motion 1 A mass m is suspended from a piece of string of length L to form a pendulum. When displaced from equilibrium and released, the mass swings back and forth with a time- period T. The angle that the pendulum makes to vertical at time t is given by: 0=0 max cos(2πt) where max is the initial displacement of the pendulum. a) What two forces act on the mass to cause the pendulum to swing back and forth? (1 mark) b) State and explain the effect of increasing the mass on the time-period. (2 marks) c) State the effect of increasing the length of the string on the time-period. (1 mark) d) Describe an experiment to determine the acceleration of gravity from the time-period of different length pendulums. Include details of how to increase the precision of the value determined. (4 marks)