Question

Which of the following statements is/are incorrect?
(A) Arm length or a footstep was used as a unit of length in olden days.
(B) The needle of a sewing machine undergoes circular motion.
(C) Motion of a body thrown upward at an angle is rectilinear motion.
(D) Multiples and submultiples of a unit are used for measurement of bigger orsma​

Answer 1

Answer:

option no a is correct

Explanation:

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