Question

44. ( John weighs 80 kg, and eats a 1,000 J candy bar. If his

Answer 1

John can run with the velocity of 5 m/s

Explanation:

• Kinetic energy is defined as the energy is being used to do an activity, basically energy associated with the motion of objects in the universe.
• The formula used to find the kinetic energy of an object is k = $\frac{1}{2} mv^{2}$ where as k represented as kinetic energy, m is the mass of the object and v is the velocity of the given object.

• Here, to find the answer we have to re-write the equation as $v = \sqrt[2]{\frac{2 k}{m} }$
• Given, the mass of the object, here it is John = 80 kg, energy needs to be converted to kinetic energy, k = 1000  J.
• Hence, substitute all the values, then you would velocity as 5 m/s