5. A mass of 100 g is suspended from a vertical spring and the system is allowed to come to a rest. When the mass is now

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5 A Mass Of 100 G Is Suspended From A Vertical Spring And The System Is Allowed To Come To A Rest When The Mass Is Now 1 (134.41 KiB) Viewed 45 times

5. A mass of 100 g is suspended from a vertical spring and the system is allowed to come to a rest. When the mass is now pulled down a distance of 10 cm and released, the time taken for 20 oscillations is 10 seconds. (a) Calculate the frequency of the oscillations. Your answer should be in Hz. (b) Calculate the maximum velocity of the mass. You answer should be in cm/s. (c) Calculate the displacement of the mass at t = 0.4 s. You answer should be in cm. (d) Calculate the kinetic energy of the mass when the displacement is x = 2 cm. You answer should be in Joules. (e) Calculate the potential energy of the mass when the displacement is x = 2 cm. You answer should be in Joules. (f) Another mass is now added to the spring, so that the total mass is now 4 times the initial mass. What is the new frequency of oscillation? (g) With both masses still in place, the spring is now suspended from a horizontal support rod that can be made to oscillate vertically as shown in Figure 14 support rod vertical oscillations masses Figure 14 Describe what happens to amplitude rod oscillates at (i) 4 Hz, (ii) 1 Hz. and frequency of the oscillating masses, when the support spring (1) (2) (2) (2) (2) (1) (4)