Two spheres A and B of radii 10 m and 5 m move while maintaining contact between two fixed inclined walls at 60° and 30°. If sphere A has speed 9 m s⁻¹, the speed of B is:
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Two spheres A and B of radii 10 m and 5 m move while maintaining contact between two fixed inclined walls at 60° and 30°. If sphere A has speed 9 m s⁻¹, the speed of B is:
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