Final answer:
Clockwise torque is calculated using the formula τ = rFsinθ, and its direction depends on the force's rotation about the pivot point. A longer lever arm or greater force increases the torque's magnitude.option a is correct.
Step-by-step explanation:
The concept of torque in physics refers to the rotational force applied to an object about a pivot point. To calculate the clockwise torque, with the axis as the 0-cm point, you would use the formula τ = rFsinθ, where τ is the torque, r is the perpendicular distance from the pivot point to the line of action of the force, F is the magnitude of the force, and θ is the angle between the force and the radial line from the pivot point to the point of force application.
A clockwise torque is indicated when the object rotates clockwise with respect to the pivot point. A longer lever arm or a larger force will result in a greater magnitude of torque. Clockwise and counterclockwise torques can balance each other, resulting in a net torque of zero and no change in rotational motion.