Question

1. You are driving south on the 405. You are in traffic so your speed is 35 miles per hour,

(35 mi/hr). Calculate your speed in m/sec. Assume that there 1.609 meters in every mile.








2. The Moon takes 27.25 days to make one revolution around the Earth. Calculate how
many seconds it takes for the Moon to make one revolution around the Earth.

Answer 1

1. 15.64 m/s

2. 2,354,400 seconds

Step-by-step explanation:

1. 1mile is equivalent to 1609metres and 1hour is equivalent to 3600sec.

35mph = (35×1609)/3600

= 56315/3600

= 15.64 m/s

2. Note that 1 day ===> 24hrs

60min ==> 1hr

60sec ===> 1min

Thus 27.25 days = 27.25×24×60×60

= 2,354,400 seconds