Task id10348
Seller: nerdmavr
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Product description
A board 1 m long lies on a smooth horizontal plane, at one end of which a vertical stop is attached. What minimum speed must be imparted to a small block lying at the other end of the board so that after an absolutely elastic impact on the stop, the block returns back and falls from the board? The mass of the board is 8 times greater than the mass of the block, the coefficient of friction between them is 0.2. g = 10 m/s2.
Additional information
Detailed solution. Format jpg