Question

a car has 1000 j of energy stored in fuel. when it moves, it has 100 j of heat energy. how much maximum kinetic energy can it have? 1000 j 3000 j 900 j 500 j

Explanation:

Step1: Apply energy - conservation principle

The total initial energy is the energy stored in fuel. Some of it is lost as heat and the rest is kinetic energy.

Step2: Calculate kinetic energy

The initial energy stored in fuel is 1000 J and the heat energy is 100 J. The kinetic energy \(K\) is given by \(K = E - Q\), where \(E\) is the initial energy and \(Q\) is the heat energy. So \(K=1000 - 100\).

Answer:

900 J