Question

A plane flies northwest out of o'hare airport in chicago at a speed of 400 km/hr in a direction of 150 degrees (i.e., 30 degrees north of west). the canadian border is located a distance of 1500 km due north of chicago. the plane will cross into canada after approximately ______________hours

Answer 1

The plane will cross into Canada after approximately 3.75 hours.

Step-by-step explanation:

To calculate the time it takes for the plane to cross into Canada, we need to determine the distance it has to travel. The Canadian border is located 1500 km due north of Chicago. Since the plane is flying at a speed of 400 km/hr, we can use the formula: Distance = Speed × Time, where Distance is 1500 km and Speed is 400 km/hr. Rearranging the formula, we get Time = Distance / Speed. Plugging in the values, we have: Time = 1500 km / 400 km/hr. Simplifying, we find that the plane will cross into Canada after approximately 3.75 hours.