An athlete whose mass is 60kg runs a 200m race in 30 seconds, calculate the kinetic energy of the athlete

Answer 1

We can calculate the kinetic energy of the athlete using the formula:

kinetic energy = 0.5 x mass x velocity^2

First, we need to calculate the velocity of the athlete. We can use the formula:

velocity = distance / time

The distance of the race is 200m and the time taken is 30 seconds, so:

velocity = 200 / 30 = 6.67 m/s (rounded to two decimal places)

Now we can substitute the values into the kinetic energy formula and calculate:

kinetic energy = 0.5 x 60 x (6.67)^2 = 1335.6 joules (rounded to one decimal place)

Therefore, the kinetic energy of the athlete is approximately 1335.6 joules.