Chapter 4, Problem 12A

For a freely falling object dropped from rest, what is the acceleration at the end of the fifth second of fall? The sixth second? At the end of any elapsed time t?

To determine

Acceleration of a freely falling object dropped from rest at the end of fifth, sixth second of fall and at the end of the fall.

Explanation of Solution

Introduction:

Every freely falling objects, falls under the influence of gravitational force exerted by an Earth. Acceleration increases the velocity of an object during fall.

The Earth exerts a gravitational force on every objects. When objects falling freely its acceleration is constant during fall of its motion. The acceleration is same at fifth second, sixth second and end of any elapsed time t. Its value is 9.8 m/s².

Conclusion:

Acceleration is same at every second of time t during free falling of objects.