A given spring stretches 0.1m when a force of 20N pulls on it . A 2 kg block attached to it on a frictionless surface pulled on the right 0.2 m and released .
a. What is the frequency of oscillation of block?
b. what is the velocity of the midpoint ?
c. what is its acceleration at either end?
d. what is the acceleration and velocity when x=0.12m on the block’s first passing this point?
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