Question

The speed limit on certain interstate highways is 80 miles per hour. (a) What is this in feet per second? ft/s (b) How many kilometers per hour is this? km/h Additional Materials eBook + -/1 points 2. OSUniPhys1 1.3.WA.007. What is the height in meters of a 6-foot-4-inch tall person? m Additional Materials eBook +-/1 points 3. OSUniPhys1 1.3.WA.008. Mount Everest, at 29,028 feet, is the tallest mountain on Earth. What is its height in kilometers? km

Answer 1

Concept- Use the concepts of unit conversion to find the solutions as shown below

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1) a) hr 80 miles - 80x (5280ft? = 36005 80 miles = 80% (1.609km) = 117.30 ft/s 128.75 km/h b hr - ur 2) So, I foot = 12 inch 6 foot 4 inch = 6812 + 4 inch = 76 inch 76 inch = 76% (0.0254m) - 1.93m 3) 1 foot = 0.0003048 km So, 29028 feet = (29028)X(0.0003048) km = 8.85 km