Ответ:
mgh=mV^2/2+ A
V^2=-2A/m+2gh
V=√(-2A/m+2gh)
V=√(2(-432/60+2*10*4))=12.0664 м/с
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Ответ:
mgh=mV^2/2+ A
V^2=-2A/m+2gh
V=√(-2A/m+2gh)
V=√(2(-432/60+2*10*4))=12.0664 м/с