What is the kinetic energy of an object with a mass of #6.25xx10^4# #"g"# having a speed of #"26.3 m/s"#?
The person's kinetic energy is equal to 21.6 kJ.
Kinetic energy is simply a measure of how much work needs to be done in order to accelerate an object from complete rest to a given velocity.
Mathematically, kinetic energy is defined as
So, convert the mass of the person from grams to kilograms
Now plug your values into the equation and solve for
Rounded to three sig figs and expressed in kilojoules, the answer will be
(Rounded to three significant figures.)