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###### A car of mass 1300kg is constructed using a frame supported by four springs and a dash-pot with a damping 5% of critical. Each spring has a force constant 20 OOONIm: If the combined mass of four people in car is 350kg, determine the period of execution of two complete vibrations in seconds_ And then calculate the vertical acceleration experienced by the occupants at t=0.5s, given the initial displacement and velocity are 0 mm and mls respectively.

A car of mass 1300kg is constructed using a frame supported by four springs and a dash-pot with a damping 5% of critical. Each spring has a force constant 20 OOONIm: If the combined mass of four people in car is 350kg, determine the period of execution of two complete vibrations in seconds_ And then calculate the vertical acceleration experienced by the occupants at t=0.5s, given the initial displacement and velocity are 0 mm and mls respectively.

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