The following statements are true or false :
(a) pace or a footstep can be used as a standard unit of length.
(b)motion is the change in position of an object with respect to time .
Answers
Answered by
1
Answer:
1 is wrong sec is true!!!
Explanation:
Fundamental unit should b identical for alll and as we know... Footstep varries prsn by prsn.. So we can't take!!
Sec is right.. Motion in anything alwz taken regard time!!
Answered by
0
Answer: (a) No, it is because a pace or a footstep of each and every person is not equal. They may vary in size, which caused confusion and incorrect measurements and a need to get a new measuring system which is correct emerged, which is now so called SI units, which is accepted by the world internationally.
(b) True. Motion is the movement of an object with respect with time, depending on the friction or controls
Similar questions