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11. A bag of sand of mass Mis suspended by a string. A bullet of mass m is fired it with velocity and gets embedded into it. The loss of kinetic energy
Kinetic Sand 6028362 n.a. For Ages 3, Brown Beach Sand, 3 lbs : Amazon.co.uk: Toys & Games
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Childrens Play Sand Bulk Bag
Kinetic Sand, 6lb Mouldable Sensory Play Sand Amazon Exclusive 3-Colour Bundle Pack (Blue, Green, Purple) Only Available at Amazon! &, Sandisfying Set with 906 g of Sand and 10 Tools : Amazon.co.uk: