Axel needs four new tires for his car. He has a choice of high performance tires that cost $169 each or economy tires that cost $112 each. How much will he save by buying four economy tires rather than four high performance tires? $228

$285

$448

$676

$57

The law of Physics that we all learned in fourth grade, simplified as:

Rate x Time = Distance

That’s pretty much the one.

Have a look at this chart of some record breaking 100m races. Sub 1 second times for 10m splits are routine.

I am fat (obese according to the charts), old (55), and not a very good runner. I was doing fartleks (Sprints) this am at the end of my training run - approximately 170m sprints - and I was hitting top speeds of 5:55 min / mile.

This works out to 2.2 seconds per 10 meters.Step-by-step explanation: