A potter is shaping a bowl on a a potter’s wheel. The wheel rotaes at a constant angular speed. The frictional force between her hands and the clay is 1.25 N. How large is the torque she produces on the wheel if the diameter of the bowl is 13 cm.

To determine the torque produced by the potter on the wheel, we need to know the formula for torque.

The formula for torque is given by the equation:

Torque = Force x Lever Arm

In this case, the force is the frictional force between the potter's hands and the clay, which is given as 1.25 N. The lever arm represents the distance between the axis of rotation (in this case, the center of the wheel) and the point of application of force.

Since the diameter of the bowl is given, we need to convert it to the radius before we can calculate the lever arm. The radius is half of the diameter, so we have:

Radius = Diameter / 2 = 13 cm / 2 = 6.5 cm

Next, we need to convert the radius from centimeters to meters since torque is typically calculated using SI units.

1 meter = 100 centimeters, so we can convert cm to meters by dividing the radius by 100:

Radius = 6.5 cm / 100 = 0.065 meters

Now we have the force (1.25 N) and the lever arm (0.065 meters), we can calculate the torque:

Torque = Force x Lever Arm = 1.25 N x 0.065 meters = 0.08125 Nm

Therefore, the torque produced by the potter on the wheel is 0.08125 Nm.