Question: To a spring, which stretches 5 0 cm when applying a force of 4 N , a weight of 1 9 . 6 N .

To a spring, which stretches50cm when applying a force of4 N,a weight of19.6N.This weight is moved away from its equilibrium position by pulling it1m down. If the weight is released, find the equation of motion in the following cases:
a)There is no shock absorber
b)There is a shock absorber whose resistance is8times the instantaneous speed.

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