Question

an air plane at an altitude of 35000 feet begins desending at a rate of 2000 feet per minute. How long will it take for the plane to hit the ground

Answer 1

Explanation:

We can use the formula for distance, rate, and time (D = R x T) to solve this problem. The distance the plane needs to descend is 35,000 feet, and its rate of descent is 2,000 feet per minute. Let's use T to represent the time it takes for the plane to hit the ground.

Then, we have:

D = 35,000 feet

R = -2,000 feet per minute (the negative sign indicates descent)

T = ?

Substituting into the formula, we get:

35,000 = (-2,000) x T

Simplifying, we divide both sides by -2,000:

T = 35,000 / 2,000

T = 17.5

Therefore, it will take the plane 17.5 minutes to hit the ground.