A freely-falling object has a speed of 30 m/s at one instant.Exactly 2 seconds later its speed will be
A)the same.
B)40 m/s.
C)50 m/s.
D)more than 50 m/s.

Question

Quizplus · Accepted Answer

A freely-falling object accelerates at approximately 9.8 m/s² due to gravity. After 2 seconds, its speed increases by 2 * 9.8 m/s = 19.6 m/s, making the new speed approximately 30 m/s + 19.6 m/s = 49.6 m/s, which rounds to 50 m/s.

A Freely-Falling Object Has a Speed of 30 M/s at One