A firefighting airplane is flying at 200 km/h horizontally and is prepared to drop fire repellent...

A firefighting airplane is flying at 200 km/h horizontally and is prepared to drop fire repellent onto the fire below. If the fire is moving at 130 km/h (in the same direction) on a level piece of ground 78 m below, at what angle should the fire be in the pilot’s sights when the repellent is released?A firefighting airplane is flying at 200 km/h horizontally and is prepared to drop fire repellent onto the fire below. If the fire is moving at 130 km/h (in the same direction) on a level piece of ground 78 m below, at what angle should the fire be in the pilot’s sights when the repellent is released?A firefighting airplane is flying at 200 km/h horizontally and is prepared to drop fire repellent onto the fire below. If the fire is moving at 130 km/h (in the same direction) on a level piece of ground 78 m below, at what angle should the fire be in the pilot’s sights when the repellent is released?

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Expert Solution

The airplane is moving with a speed of 200km/hr and the fire is moving with 130km/hr in same direction. If we know how much time should be taken by fire repellent to touch the ground, then we can calculate the total distance travelled by both plane and fire. Using the trigonometric laws one can easily calculate the angle of our interest. This is the whole idea behind this question.

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genius_generous answered 2 years ago

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