Question

Why can you not use an elastic measuring tape to measure distance?
How is the motion of a bicycle and a ceiling fan (Switched ‘ON’) different?

Answer 1

$\huge\red{question }$

Why can you not use an elastic measuring tape to measure distance?

$\huge\red{Answer }$

Elastic tapes are stretchable. So, the length of an elastic measuring tape will change each time due to stretching. So, it will not give correct measurement of a distance. Therefore, we cannot use an elastic measuring tape to measure distance.

$\huge\red{question }$

How is the motion of a bicycle and a ceiling fan (Switched ‘ON’) different?

$\huge\red{Answer }$

Differences between the motion of a bicycle and a ceiling fan are that a bicycle has linear motion as it moves forward, whereas the ceiling fan does not possess the linear motion.

Answer 2

Answer:

Explanation:

1) Elastic tapes have a tendency to stretch. This stretching property of the elastic tape makes it more prone to faults in measurements.

Hence , we couldn't measure distance from elastic measuring tapes.

Instead , non elastic tapes are more accurate.

2) A bicycle has linear motion, whereas the blades of a ceiling fan do not have a linear motion.

2)The motion of the blades of a fan is periodic, whereas the motion of a bicycle is rectilinear motion.