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

Answer 1

We can use the formula for kinetic energy:

KE = 0.5 x m x v^2

where KE is the kinetic energy, m is the mass of the athlete, and v is the velocity of the athlete.

First, we need to find the velocity of the athlete using the formula for average speed:

v = d/t

where d is the distance traveled and t is the time taken. In this case, the distance is 200m and the time is 30 seconds:

v = 200/30 = 6.67 m/s

Now we can plug in the values for mass and velocity to find the kinetic energy:

KE = 0.5 x 60 x (6.67)^2

KE = 13335 Joules

Therefore, the kinetic energy of the athlete is 13335 Joules.