(i) What type of motion is performed by the needle of a sewing machine?
(ii) Write any three units used in international system of measurement. Also specify what these units measure.
Asked by Topperlearning User | 8th Aug, 2013, 02:28: AM
(i) The needle of a sewing machine has periodic motion.
(ii) metre (m) : SI unit of length
second (s) : SI unit of time
kilogram (kg) : SI unit of mass
Answered by | 8th Aug, 2013, 04:28: AM
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