Q # 1
When a 0.850kg mass oscillates on an ideal spring, the frequency is 1.43Hz. What will the frequency be if 0.320Kg is added to the original mass and (b) subtracted from the original mass? Try to solve this problem without finding the force constant of the spring.
Marks = 7
Q # 2
Are you familiar the procedure used by astronaut to "weigh" in space? Let us discuss it in a problem and try to find the mass of astronaut. A 45.5Kg chair is attached to a spring and allowed to oscillate. When it is empty, the chair takes 1.45 s to make one complete vibration. But with an astronaut sitting in it, with her feet off the floor, the chair takes 3.5s for one cycle. What is mass of astronaut? Marks = 8
Q # 3
The tip of a tuning fork goes through 540 complete vibrations in 0.800s. Find the angular frequency and the period of the motion. Marks = 5
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