Question

An airplane flies from Morocco to France. The trip takes two hours and 15 minutes. If the plane flies at a constant speed of 500 miles per hour, how far is it from Morocco to France? Choose the closest answer. 1,125 kilometers 1,699 kilometers 1,547 kilometers 1,811 kilometers

Answer 1

The nearest value is 1811 km

Step-by-step explanation:

This is an exercise in kinematics, with uniform movement

v = x / t

Let's reduce time to seconds

t1 = 2 h (3600s / 1h) = 7200 s

t2 = 15 min (60s / 1min) = 900 s

The total time is

t = t1 + t2

t = 7200 +900

t = 8100 s

We calculate the distance

x = v t

We reduce speed to mile / h to km / s

v = 500 mile / h (1,609 km / 1 mills) (1h / 3600s)

v = 0.2235 km / s

x = 0.2235 8100

x = 1810.5 km

The nearest value is 1811 km