Solution of task 17.1.3 from the collection of Kepe OE
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17.1.3
A material point with a mass m = 0.6 kg fluctuates in the vertical direction
But to the law x = 25 + 3 sin 20t, where x is in cm. Determine the modulus of the reaction of the spring at the instant
Time t = 2 s. (Answer 11.3)