An ideal rigid ball, or ring and even cylinders when their longitudinal axis is parallel to the surface, is considered to not be in contact with the surface except for a single point.
In the above diagram only the single point A
touches the surface. The surface area of contact is precisely 0
.
Real balls deform due to the forces on it (weight for example—more weight will cause the ball to deform more). Which means a portion of their surface is in contact with the ground. The surface area of contact in this case is positive but still small. Exact values can’t be calculated unless extensive data is available
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Answer:
13,266.5
Step-by-step explanation:
An ideal rigid ball, or ring and even cylinders when their longitudinal axis is parallel to the surface, is considered to not be in contact with the surface except for a single point.
In the above diagram only the single point A
touches the surface. The surface area of contact is precisely 0
.
Real balls deform due to the forces on it (weight for example—more weight will cause the ball to deform more). Which means a portion of their surface is in contact with the ground. The surface area of contact in this case is positive but still small. Exact values can’t be calculated unless extensive data is available