A steel ball has kinetic energy

PHYSICS · Single correct · CBSE · Physics · Units and Measurements · Units and Measurements

Problem

A steel ball has kinetic energy 7.2×104 J7.2 \times 10^{4}\,\text{J}. Express this energy in kilojoules. (a) 7.2 kJ7.2\,\text{kJ} (b) 0.72 kJ0.72\,\text{kJ} (c) 72 kJ72\,\text{kJ} (d) 720 kJ720\,\text{kJ}

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