(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

Expert Answer:

(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