A boy standing on the roof of a building $45 m$ high, throws a stone up in the air. If the stone reached its highest point and fell $63 m$ below to the ground, how high was the stone thrown form the roof?

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Solution

Height of the building $= 45 m$
Height of stone from ground by which thrown by boy $= 63 m$
Height of stone from roof $= 63 - 45 = 18 m$

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A boy standing on the roof of a building 45 m high, throws a stone up in the air. If the stone reached its highest point and fell 63 m below to the ground, how high was the stone thrown form the roof?

Height of the building =45mHeight of stone from ground by which thrown by boy =63mHeight of stone from roof =63−45=18m

A boy standing on the roof of a building $45 m$ high, throws a stone up in the air. If the stone reached its highest point and fell $63 m$ below to the ground, how high was the stone thrown form the roof?

Height of the building $= 45 m$
Height of stone from ground by which thrown by boy $= 63 m$
Height of stone from roof $= 63 - 45 = 18 m$