kg block oscillates back and forth along a straight line on a frictionless horiz

Question

kg block oscillates back and forth along a straight line on a frictionless horizontal surface. Its displacement from the origin is given by the following equation. x = (11 cm)cos[(15 rad/s)t + pi/2 rad)] What is the oscillation frequency? What is the maximum speed acquired by the block? At what value of x does this occur? What is the magnitude of the maximum acceleration of the block? At what values of x does this occur? (Type your answers in any order. If there is only one answer, type 'none' in the second box.) What force, applied to the block, results in the given oscillation?

Explanation / Answer

We generally do not answer the questions of those who are having low rating. You are having a rating of "85%". Please rate all answers and improve your rating. Even if you find the answers are incorrect, first rate Lifesaver or helpful to the best answer and then rate other answers as not helpful. But do rate them for the good of both of us. Thanks!! Coming to the problem d)w = 15 rad/s sqrt(k/m) = 15 rad/s =>k/m = 225 rad/s^2 =>k = 225*0.4 kg/s^2 = 90 N/m = 90 N/ 100cm = 0.9 N/cm

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