5) A present falls out of Santa's sleigh and falls 2,500 meters to Earth. A) How much time did it fall through the air? B) What is its final velocity?

(a) The time of fall is 22.59 s

(b) The final velocity of the present before it hits the ground is 221.38 m/s

Explanation:

Given;

height of fall, h = 2500 m

(A) The time of fall is given as;

(B) The final velocity of the present before it hits the ground is given as;

v = u + gt

where;

u is the initial of fall = 0

v = 0 + (9.8 x 22.59)

v = 221.38 m/s

the answer is kevlar

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.