Question

question 6 of 10
a book falls from a table. if there is no air resistance, what is the acceleration - time graph for this book?
a.
acceleration (m/s²)
time (s)
b.
acceleration (m/s²)
time (s)
c.
acceleration (m/s²)
time (s)
d.
acceleration (m/s²)
time (s)
a. graph c
b. graph b
c. graph d
d. graph a

Explanation:

Step1: Recall free - fall motion

When there is no air resistance, an object in free - fall near the surface of the Earth experiences a constant acceleration due to gravity, approximately $g = 9.8\ m/s^{2}$.

Step2: Analyze the acceleration - time graph

The acceleration of the book is constant throughout its fall. A constant value of a quantity over time is represented by a horizontal line on a graph of that quantity versus time.

Answer:

D. Graph A