Question

Read the following sentences carefully, and choose the correct one:

[A]. When you push up box on the floor it undergoes rectilinear motion.
[B]. Measurement involves the comparison of an unknown quantity with a known quantity.
[C]. Motion of needle of a sewing machine is periodic motion.
[D]. All the above.​

Answer 1

Answer:

All of the above

Explanation:

became all are in the correct sentence

Answer 2

Answer:

D all the above

Explanation:

because a is wrong undergoes motion is under the table and c is periodic motion is roaming round