Question

Part a - obtaining conversion factors from unit equality relationships in an experiment you are performing, your lab partner has measured the distance a cart has traveled: 28.4inch. you need the distance in units of centimeter and you know the unit equality 1inch=2.54centimeter. by which conversion factor will you multiply 28.4inch in order to perform the unit conversion?

Answer 1

Solution:

As we given that $1 inch=2.54 cm$

then using this conversion factor we can write  $28.4 inch=28.4* (1 inch)$

and further it can be written as

$28.4* (1 inch)*(2.54 cm/1 inch)=28.4*2.54 cm= 72.136 cm$

Hence the required conversion factor is 2.54 cm/1 inch as we can see from the above calculation.