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A piston performs reciprocal motion in a straight line which can be modelled as s.h.m its velocity is 20 m/s when the displacement is 80 mm from the mid-piston, and 4 m/s when the displacement is 160 mm from the mid piston.
Determine:
a). The frequency and amplitude of the motion.
b). The accelerations when the displacement is 130 mm from the mid- piston.
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