If a bird were to start out from the origin (where the student starts) and fly directly (in a straight line) to the school, what distance db would the bird cover

The question is incomplete! The complete question along with answer and explanation is provided below.

Question:

A student bikes to school by traveling first 1.00 miles north, then 0.500 miles west and finally 0.200 miles south.

If a bird were to start out from the origin (where the student starts) and fly directly (in a straight line) to the school, what distance db would the bird cover

Given Information:  

distance towards north = dn =  1.00 mi

distance towards west = dw =  0.500 mi

distance towards south = ds =  0.200 mi

Required Information:  

distance covered by bird = db = ?

distance covered by bird = 0.94 miles

Explanation:

As you can see in the attached image, by applying the Pythagoras theorem,

db = √(dn - ds)² + dw²

db = √ (1.0 - 0.20)² + 0.50²

db = √ 0.80² + 0.50²

db = 0.94 miles

Therefore, the bird would cover a distance of 0.94 miles

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.