Question

Which of the following quantities has the greatest influence on the amount of kinetic energy that a car possesses while moving on the road?

• A. Velocity
• B. Time travelled
• C. Mass
• D. Distance travelled

Answer 1

The correct option is A

Velocity

Kinetic Energy $=\frac{1}{2}$m$v^2$

where, $m$ is the mass of the body and $v$ is the speed of the body.

The velocity component has a greater influence as kinetic energy is directly proportional to the square of velocity whereas it is just proportional to the mass.