It took 0.5 second for an object to travel 60.5 feet. To the nearest 0.01 mile per hour, what was the speed of the object?

(Note: 1 mile = 5,280 feet)

Summary Submit Skip Question

We can convert the units accordingly:

$$ \frac{60.5\text{ feet}}{0.5\text{ second}} \cdot \frac{1\text{ mile}}{5{,}280\text{ feet}} \cdot \frac{60\text{ seconds}}{1\text{ minute}} \cdot \frac{60\text{ minutes}}{1\text{ hour}}$$ $$ = \frac{(60.5)(60)(60)}{(0.5)(5{,}280)} $$ $$ = \boxed{82.5} $$