What precautions should be taken while measuring length ?

According to my teacher

The precautions to be taken while using a meter scale to measure lengths are as follows :

1 The scale should be placed to the side of the object being measured. It should also be in touch with the object being measured.

2 While reading the scale, eye must be placed vertically above the scale mark being read.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds