Answer
(a) $180~mi/h$
(b) $8.0~cm/ms$
Work Step by Step
(a) We can convert the speed to units of mi/h:
$80~m/s \times \frac{1~mi}{1609~m} \times \frac{3600~s}{1~h} = 180~mi/h$
(b) We can convert the speed to units of cm/ms:
$80~m/s \times \frac{100~cm}{1~m} \times \frac{1~s}{1000~ms} = 8.0~cm/ms$
