Recent content by Lucio

Thanks Andy. If contact time and dissipation are higher does that increase the energy of the ball's rebound? Also, which physics equations would apply when quatifying this effect? Thanks again

Clarification of question Andy thanks for taking the time to respond. My basic question is this. If a spherical inflated ball (with a standard inner rubber ball which holds the air and a outer casing of either rubber/leather/plastic) were projected towards a flat surface and then projected...

Andy please could you provide a comment on the effect of elasticity when a ball is struck with the same force but with objects of different impact surface areas. Does the smaller impact surface area not poke into the ball further than the larger impact surface area. If this is the case would the...

Assuming that the ball is of the same manufacture and pressure with the same degree of cover and ball elasticity, if it is projected towards two impact points at the same speed the only difference being that the first impact point is an area of A and the second impact point is an area of 2A...

If the problem is changed and considered as a ball striking a stationary but firmly held object what is the difference in the return energy (in the ball) when the ball strikes an impact area of size A compared with an impact area of size 2A (ie the difference in the ball striking a small area...

Many thanks for the comments. Which are the physics equations which most relate to this? Is it the PE=.5*k*X*X where X is the displacement. From an experimental point of view if you had two fixed hard artificial feet one with impact area A and the second larger one with impact area 2A...

Law of elasticity PE=.5 * k * x * x If potential energy stored in elastic material is PE=.5 times k (constant) times distance of displacement (twice) then does a toe poke to a ball which causes more elastic displacement generate more potential energy than if the ball is struck with the side of...

How much influence does the elasticity of a football cover have on a ball football A number of people have kindly pointed out that the surface area of impact where a ball is truck does not effect the speed of the ball in terms of the laws of forces. What about the additional factor of the...

Observation shows that a toe poke does cause a different effect to the speed of the ball compared to a wider area of the foot striking a ball. Could it be that the pressure (force over area) causes a greater energy release through the elastic recoil from the toe poke?

Does not the greater pressure of a smaller impact area have implication?

If I kick a ball with the toe of my shoe (small area) rather than the side of my shoe (larger area), will the ball travel with greater speed and therefore travel further with the kick using the toe assuming the foot strikes the ball at the same speed? I would be very grateful for some sort of...