Final answer:
The linear acceleration at a point on a rim can be calculated using the formula: a = r * α, where a is the linear acceleration, r is the radius of the rim, and α is the angular acceleration.
Step-by-step explanation:
The linear acceleration at a point on a rim can be calculated using the formula:
a = r × α
where a is the linear acceleration, r is the radius of the rim, and α is the angular acceleration. This formula states that linear acceleration is directly proportional to the radius and angular acceleration.