an object of mass m is dropped from a height h.what is the kinetic energy when it touches the ground?"
T+U=E=const - The law of conservation of energy T - kinetic energy U - potential energy E - total energy when the object is dropped: E=0+mgh m - mass oа the body h - height when it touches the ground E=T+0 T+0=0+mgh T=mgh
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