Read the followin

(i) (A) The energy stored in the fuel of an internal combustion engine is converted to mechanical energy

(ii) (D) Electrical energy is used in electric cars to power them

(iii) (A):The kinetic energy of a body is given by the formula

where m is the mass of the body and v is the velocity.

(iv) (C) The work done on the car can be calculated as

Therefore, 1800 J of work is done on the car by the engine.

(v) (A) The energy is converted to the kinetic energy of the car, then the velocity of the car can be calculated as