Final answer:
The true statement about a ball rolling uphill 6 meters and stopping after 3 seconds is that the final speed is zero. We cannot accurately determine the initial speed or acceleration without additional information.
Step-by-step explanation:
When a ball rolls uphill 6 meters and stops after 3 seconds, the correct statement is b. the final speed is zero. This is because when an object comes to a stop after moving, its final velocity is 0 m/s.
The initial speed cannot be determined solely based on the information provided, so statement a. may or may not be true. Similarly, without additional information, the acceleration value cannot be confirmed to be 10 m/s², making statement d. inaccurate based on typical gravitational acceleration being 9.8 m/s² on Earth. Statement c. is also not necessarily true as there is no information indicating that the initial speed is zero—it starts rolling, which implies an initial speed greater than zero.