What lou said. Yep concave, so therefore the ball isnt always struck by a flat angle. The tennis racquet example is inaccurate, because a: they are strings not a sold facing B: The tennis racquet is 30 times the surface area of the balls contact point.
What lou said. Yep concave, so therefore the ball isnt always struck by a flat angle. The tennis racquet example is inaccurate, because a: they are strings not a sold facing B: The tennis racquet is 30 times the surface area of the balls contact point.