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Physics 19 Online
OpenStudy (anonymous):

What is the condition for newton's experimental law to valid?Is it hold for external force there?

OpenStudy (anonymous):

Laws 1 and 2 require an inertial reference frame (not accelerating)

OpenStudy (anonymous):

No,I mean the restitution law e=-(v2-v1)/(u2-u1)

OpenStudy (anonymous):

What law?

OpenStudy (anonymous):

definition of coefficient of restitution

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