High apparent adhesion energy in the breakdown of normal restitution for binary impacts of small spheres at low speed
نویسندگان
چکیده
We measure kinematic coefficients of normal restitution in head-on collisions of two identical small spheres of acrylic, ceramic or steel suspended by thin resilient strands at low enough impact speeds for adhesion to lower the restitution. We observe such reduction at speeds consistent with an apparent adhesion surface energy larger than expected.
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