Final answer:
To calculate the maximum speed a 70 kg person can achieve with energy from cake converted into kinetic energy, we need to know the specific energy content of the cake in joules; then we apply the kinetic energy formula KE = ½ mv² to find the velocity.
Step-by-step explanation:
The maximum speed a person can move at when energy from food is converted into kinetic energy depends on the amount of energy available and the mass of the person. To find the maximum speed, we first need to calculate the total kinetic energy available to the person using the principle of energy conversion. Assuming an energy value from food like cake, if this energy is completely converted into kinetic energy, we use the kinetic energy formula: KE = ½ mv², where m is the mass and v is the velocity.
Unfortunately, since we do not have the specific energy content of the cake translated into joules, we cannot proceed with a numerical calculation. However, the total energy (in joules) provided by the cake would need to be determined first. Using the mass of 70 kg, the final velocity can be found by rearranging the kinetic energy formula to solve for v: v = √(2 * KE / m).