Question

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1.2.1

The winner of a 100 mile race drove his car to victory at a rate of 143.8683 mph. What was his time to the nearest thousandth of an hour)?

His time was

hours

(Round to the nearest thousandth.)

Answer 1

0.69508 hours

Explanation:

The winner of a 100 miles race drove his car to victory at the rate of 143.8683 mph

Velocity= 143.8683 mph

Distance = 100 miles

Therefore his time can be calculated as follows

Time= distance/velocity

= 100/143.8683

= 0.69508 hours