Question

a ball is thrown downward from the top of a 40 m high building at a velocity of 5 meter per second. find the time it takes to reach the ground​

Answer 1

Answer:

Your answer is in the picture

Answer 2

Answer:

t=16 s

Explanation:

Initial Velocity (Vi)= 5m/s

distance (d)= 40m

Final Velocity = 0m/s

t=?

d= 1/2 (Vf+Vi)t

40m= 1/2 (0m/s + 5 m/s) t

40m= (2.5m/s)t

*divide both sides with 2.5 m/s

t=16s