Question:

Physics- Resonance?

can anyone solve this? please show me the process, the answers are already there but i need to understand whyA car of mass M 1300 kg carrying four people each on mass m 82.0 kg travels over a rough washboard dirt road with regularly spaced corrugations a distance d 3.70 m apart, which cause the car to bounce on its spring suspension. The car bounces with maximum amplitude when its speed is V 16.0 km/h. It now stops and the four people get out. The car rises on its suspension a height h due to this decrease in mass. (c) What is the effective force constant k for the car‘s suspension system? 92700.0 N/m (d) If the maximum amplitude of the car‘s oscillations is A 20.0 cm, what is the vibrational energy stored in its vertical oscillations? 1850.0 J (e) What are the maxima velocity and acceleration of the vertical motion of the car? (i) V 1.51m/s (ii) A 11.4m/s^2(f) What is the height h the car rises when the people alight? 0.0347m

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