Question

how is efficiency of a fuel measured ?​

Answer 1

Answer:

Fuel efficiency of motor vehicles. ... Fuel economy is the distance travelled per unit volume of fuel used; for example, kilometres per litre (km/L) or miles per gallon (MPG), where 1 MPG (imperial) ≈ 0.354006 km/L

Explanation:

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Answer 2

Answer:

The velocity vector is constant in magnitude by changing in direction. ...For this reason it can be safely concluded that an object moving in a circle at constant speed is indeed accelerating because the direction of velocity vector is changing.