A boy walked 22 m East then 43 m West , and then 3 meters East. What is the sum of the boys motion.

Given :

A boy walked 22 m East then 43 m West , and then 3 meters East.

To Find :

What is the sum of the boys motion.

Solution :

We need to find the sum of all the motion of boy .

So , we need to find the distance covered by the boy .

We know , total distance covered is absolute sum of all the motion .

Therefore , total distance covered is 68 meters .

Hence , this is the required solution .

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.