Question

a ball is rolling down a rough inclined plane. Name the contact force acting on the ball​

Answer 1

Answer:

The forces of gravity and friction work together to create the rotation of the ball from the inclined surface and the difference in apparent torque arrives as the fact that it works in different frame of reference.

Answer 2

Gravitational Force is working on the ball to make it role, and,
Frictional force is opposing the motion.

Hope it is helpful...