Un niño de 25 kg corre por un jardín con una velocidad de 2.5 m/s de forma que su trayectoria es tangente al borde de un carrusel de 500 kg•m2 de momento de inercia y un radio de 2 m, que está parado. el niño salta sobre el carrusel y lo pone en movimiento. determina la velocidad angular del niño y del carrusel cuando se mueven juntos.
grupo de opciones de respuesta:
0.25 rad/s
5 rad/s
0.208 m/s
0.208 rad/s
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Ответ:
Ben os ok. the moment of the bus and the worm are conserved
Explanation:
System formed by the bus and the worm, therefore the forces during the collision are internal and therefore the moment is conserved
initial instant. Airs of shock
p₀ = My v₀
final instant. After the shock
p_f = (M + m) v
the moment is preserved
p₀ = p_f
M v₀o = (M + m) v
v =
v₀
v =
v₀
Let's analyze these equations the moment of the bus and the worm are conserved, therefore Ben is the one who is right. Let us propose the solution of the problem.