# Question #49ce5

Sep 26, 2016

Yes. The car is exceeding the speed limit of 55.0 mi/h.

#### Explanation:

Identify the equalities needed to answer the question.

$\text{1 mi=1609.34 m}$

$\text{1 h=3600 s}$

Multiply $\text{28.8 m/s}$ by the equalities so as to cancel meters and seconds.

$28.8 \cancel{\text{m"/cancel"s"xx(1"mi")/(1609.34cancel"m")xx(3600cancel"s")/(1"h")="64.4 mi/h}}$ (rounded to three significant figures)

The car is exceeding the speed limit of 55.0 mi/h.