A 123 kg linebacker tackles a 87 kg wide receiver. As the linebacker grabs the wide receiver, the two are moving backward (stuck together) at 2.2 ms. The total momentum of the linebacker/wide receiver system is

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

inverse v=i*r

nice nice