An elevator moves downward in a tall building at a constant speed of 5.70 m/s. exactly 4.95 s after the top of the elevator car passes a bolt loosely attached to the wall of the elevator shaft, the bolt falls from rest. (a) at what time does the bolt hit the top of the still-descending elevator? (assume the bolt is dropped at t = 0 ) estimate the highest floor from which the bolt can fall if the elevator reaches the ground floor before the bolt hits the top of the elevator. (assume 1 floor congruent 3 m.)

a) t = 3.01s

b) 15th floor

Explanation:

First we need to know the distance the elevator has descended before the bolt fell.

Now we can calculate the time that passed before both elevator and bolt had the same position:

  Solving for t:

t1 = -1.87s    t2 = 3.01s

In order to know how the amount of floors, we need the distance the bolt has fallen:

 Since every floor is 3m:

Floors = Yb / 3 = 15 floors.

answer: 0.20

explanation: this can only be the answew because all the other measuremnets are not close

the force on the thing and the distance the force moves the thing