Abook falls from a table. if there is no air resistance, what is the acceleration-time graph for this book?

a. graph b
b. graph c
c. graph a
d. graph d

Answer;

C. Graph A

Explanation;A book falling from a table is an example of a free fall, and therefore the motion is under gravitational force as the only force acting on it.Additionally, the acceleration of a free falling object is always constant, therefore the acceleration of the book will be a constant 9.8 m/s². Therefore, the graph of acceleration against time for the book falling from a table will be a straight horizontal line at the point 9.8 m/s² on the vertical axis.

The charge of an ion with 55 protons and 52 electrons is +3. the reason is because protons are positive, and there are three more than the amount of negative electrons.