An object falls freely from rest on a planet where the acceleration due to gravity is 20 meters per second squared. After 5 seconds, the object will have a speed of
A) 10 m/s.
B) 5 m/s.
C) 20 m/s.
D) 100 m/s.
E) 50 m/s.

Question

Quizplus · Accepted Answer

The speed of an object in free fall can be calculated using the formula v = gt, where g is the acceleration due to gravity and t is the time. Here, g = 20 m/s² and t = 5 s, so v = 20 m/s² * 5 s = 100 m/s.

An Object Falls Freely from Rest on a Planet Where