Question

PLEASE HELP ME WITH A PHYSICS QUESTION!!!!!!!!!!

You are on the roof of a building, 46.0 m above the ground. Your friend, who is 1.80 m tall, is standing next to the building. If your friend does not move, how long will it take for an egg dropped from rest to hit your friend on the top of his or her head?

A. 3.06 s
B. 3.12 s
C. 3.00 s
D. 9.00 s

Answer 1

C. 3.00 s

Step-by-step explanation:

Answer 2

C. 3.00 s

Step-by-step explanation:

Given:

Δy = 1.80 m − 46.0 m = -44.2 m

v₀ = 0 m/s

a = -9.8 m/s²

Find: t

Δy = v₀ t + ½ at²

-44.2 m = (0 m/s) t + ½ (-9.8 m/s²) t²

t = 3.00 s