mlesky7901
01.12.2020 •
Physics
A 4.00-kg mass and a 9.00-kg mass are being held at rest against a compressed spring on a frictionless surface. When the masses are released, the 4.00-kg mass moves to the east with a speed of 2.00 m/s. What is the velocity of the 9.00-kg mass after the masses are released?
A) 0.500 m/s east
B) 0.500 m/s west
C) 4.50 m/s west
D) 0.888 m/s west
E) 2.00 m/s west
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Ответ:
B) 0.500 m/s West
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