A skater covers a distance of 500 m in 40 seconds. the average resistance force is 100 N

A skater covers a distance of 500 m in 40 seconds. the average resistance force is 100 N. Find the average power developed by the athlete, considering the movement to be uniform.

The power that a skater develops can be calculated using the formula:

P = A / t, where A is the work performed by the athlete (A = F * S, where F is the applied force (F = Fc = 100 N); S is the movement of the skater (S = 500 m)), t is the time of passing the distance (t = 40 s).

Let’s calculate the power developed by the athlete:

P = A / t = F * S / t = 100 * 500/40 = 1250 W = 1.25 kW.

Answer. The average power developed by an athlete is 1.25 kW.