An athlete of mass 70.0kg runs a 100m race in 10s, calculate the kinetic energy possessed by the athlete

Answer 1

The formula for kinetic energy is:

KE = 1/2mv^2

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

To calculate the velocity of the athlete, we can use the formula:

v = d/t

where d is the distance (100m) and t is the time (10s).

v = 100/10 = 10 m/s

Now we can plug in the values:

KE = 1/2 x 70.0kg x (10 m/s)^2

KE = 1/2 x 70.0kg x 100 m^2/s^2

KE = 1/2 x 7,000 kg m^2/s^2

KE = 3,500 J

Therefore, the athlete possesses 3,500 J of kinetic energy.