a swimmer develops an average of 200 watts in a distance of 100m in 80 seconds. what is the force resistance in the water?
F * 100 / 80 = 200
To calculate the force resistance in the water, we can use the formula:
Force = Power / Velocity
First, let's convert the given distance to meters per second (m/s):
Speed = Distance / Time
Speed = 100m / 80s = 1.25 m/s
Next, we can substitute the known values into the formula:
Force = Power / Velocity
Force = 200 watts / 1.25 m/s
Calculating the force:
Force = 160 N
Therefore, the force resistance in the water is 160 Newtons.