A skateboard and rider are moving in a straight line at

PHYSICS · Single correct · CBSE · Physics · Work and Energy · Work and Energy

Problem

4.0\,\text{m/s}

. Measurements show that their translational kinetic energy is

64\;\text{J}

. Determine the combined mass of the skateboard and rider. (a)

16\,\text{kg}

(b)

4.0\,\text{kg}

(c)

8.0\,\text{kg}

(d)

32\,\text{kg}