To accelerate a car we ignite petrol in the engine of the car. Since only an external force can accelerate the centre of mass, is it proper to sasy that the fore generated by the engine accelerates the car?

If only an external force can change the momentum of the centre of mass of an object, how can be internal force of an engine accelerate a car?

A car accelerates on a horizontal road due to the force exerted by

In the above question, the acceleration of the car will be

An older-model car accelerates from 0 to speed v in a time interval of Delta t . A newer , more powerful sports car accelerates from 0 to 2v in the same time period. Assuming the energy coming from the engine appears only as kinetic energy of the cars. Choose correcct statement.

A car accelerates from an initial speed to a greater final speed while the engine delivers constant power. Is the acceleration greater at the beginning of this process or at the end?

A 810 kg car accelerates from rest to 27 m/s in a distance of 120 m. What is the magnitude of the average net force acting on the car ?

What is the average number of petrol engine cars in all the states together ?