There is a person who throws a coin vertically downward with an initial speed of 11.8 m/s from the roof of a building, 34.0 m above the ground. how long does it take the coin to reach the ground? answer in s.

Time taken by the coin to reach the ground is 1.69 s

Given:

Initial speed, v = 11.8 m/s

Height of the building, h = 34.0 m

Solution:

Now, from the third eqn of motion:

Now, time taken by the coin to reach the ground is given by eqn (1):

v' = v + gt

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..