World class swimmers can swim the 100 meter in about 55 seconds what is their approximate average speed

v = 1.82 m/s

Explanation:

As we know that average speed is defined as the total distance covered in total interval of time.

So here given that

total distance = 100 m

total time = 55 s

so here from above formula

so the average speed of the swimmer will be 1.82 m/s

f=ma newton

f=100x2.5=250n