Fuel used up in a vehicle depends on which of the following? Justify your answer. Class 9

Fuel used up in a vehicle depends on which of the following? Justify your answer. Class 9

Question 1.

Fuel used up in a vehicle depends on which of the following? Justify your answer. Class 9

(i) Total distance travelled

(ii) Displacement

Answer:

Fuel used up in a vehicle depends on (i) Total distance travelled. Fuel used depends on the total distance travelled, not on displacement. This is because fuel is consumed throughout the entire path of motion, regardless of direction. Displacement only gives the shortest distance between initial and final positions, so it does not represent the actual fuel consumption. For example, if a car goes from home to a market 2 km away and comes back home, its displacement is zero but it has consumed fuel to travel 4 km total.