A 0.10kg block oscillates back and forth along a straight line on a frictionless horizontal surface. Its displacement from the origin is given by: x = (10cm)cos[(10 rad/s)t + pi/2 rad)].
(a) what is the oscillation frequency
(b) what is the maximum speed acquired by the block? At what value of x does this occur?
(c) what is the maximum acceleration of the block?
(d) What force, applied to the block, results in the given oscillation?