Acceleration of the car

Hi, friend, appritiate u for ariseing this question. Well this terniminology is defined as an ideal case. When a car is been poured with a extreamly pure petrol, usual a frictionless running surface(car is lifted up and then accelerated) then car is given rase and shifting gear according to up comming speed.

1st gear 0-15km/hr

2nd gear 16-35 km/hr

3rd gear 36-60 km/hr

it can change according to gear shifting plan, company to company and also car wise.

Acceleration at a given point depends on the torque on the driving shaft and resistance against the speed. Torque on the driving shaft is a function of the engine torque at a given rpm and gear ratio. 0-60 will be generally achieved in second gear. 0-100 will require a third gear. For every upshift of gear, torque is reduced (same as a gear bicycle). Till 60, wind resistance plays very less role. Above 60, wind resistance will start making a lot of difference (exponential). Add tyre rolling resistance to it. And so on.

So, if you imagine a car with flat torque graph and a gear that can go from 0-100 (hypothethical), acceleration in 0-10 or 90-100 will be more or less similar.

A Nice expalanation from Mahesh

Acceleration of the car is a function of many variables like Engine shaft Power/Torque vs RPM curve,moment of inertia of the driven wheels,power to wt. ratio, gear ratio , surface frictions etc.

The datas given by the car manufacturers are based on all ideal conditions . They test the wehicle with proper shifting of gears at correct shaft RPM on surfaces having adequate rolling friction.

The wehicle is tested in some particular gear as well t see the comeback acceleration as well.

In my opinion the car manufacturers should quote the gear shifting RPM as well with these acceleration datas.

"I am thankful to all those who said 'NO'. It's because of them I did it myself"- Albert Einstein