Question

How many hours does it take a bird to fly 300 km if it travels at a speed of 14 m/s?

a) 5.36 hours

b) 21.43 hours

c) 0.75 hours

d) 10.71 hours

Answer 1

To find the time it takes a bird to fly 300 km at 14 m/s, convert the speed to km/h and then divide the distance by this speed. The correct duration is approximately 5.95 hours, which is not listed in the provided options.

Step-by-step explanation:

To calculate how many hours it takes for a bird to fly 300 km if it travels at a speed of 14 m/s, we first need to convert the speed from meters per second to kilometers per hour. The conversion requires two steps: converting seconds to hours and meters to kilometers.

1. Convert the speed to kilometers per hour:
   14 m/s × 3.6 = 50.4 km/h. (Since 1 m/s is equal to 3.6 km/h, we multiply the speed in m/s by 3.6 to get the speed in km/h.)
2. Divide the distance by the speed to get the time in hours:
   300 km ÷ 50.4 km/h = 5.95 hours. (To find the time, divide the distance by the speed.)

The calculation shows that none of the provided answer options (a) 5.36 hours, (b) 21.43 hours, (c) 0.75 hours, (d) 10.71 hours are correct. The bird takes approximately 5.95 hours to travel 300 km at a speed of 14 m/s.