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Re: [Phys-l] The "why" questions



For an extended object, I think there is a delay in the acceleration of the C of M -- the delay is due to the finite speed of sound.

bc, naive?

p.s. Would there also be a delay at the front from the electrostatic repulsion (contact) -- here a bit shorter related to C?

p.p.s. I do believe N laws are symmetrical and imply nothing and work as such macroscopically -- microscopically?



On 2010, Nov 29, , at 13:29, Scott Orshan wrote:


The argument was also made that using cause-effect language might lead
students to believe that there is some delay between force and
acceleration.