Question

An object is dropped from rest from the top of a 400 m cliff on Earth. If air resistance is negligible, what is the distance the object travels during the first 6 s of its fall? 

(A) 30 m 

(B) 60 m 

(C) 120 m 

(D) 180 m 

(E) 360 m

Answer 1

Correct option (D) 180m

For a dropped object: d = ½ gt²