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a person standing on the top of a hill 30m high has to throw a ball to his frind standing on the ground 40m horizontally away.if he throws the all directly aminig at his friend with speed of 125/3 packet fallls at a distance of 20/am from hids friend .a is an integer then find value of a

a person standing on the top of a hill 30m high has to throw a ball to his frind standing on the ground 40m horizontally away.if he throws the all directly aminig at his friend with  speed of 125/3 packet fallls at a distance of 20/am from hids friend .a is an integer then find value of a 

Grade:11

1 Answers

Piyush
askIITians Faculty 112 Points
8 years ago
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x= uxt +(1/2)axt2 where ax=0
Now to calculate t Apply
y=(1/2)gt2 where uy=0
substitute the value of x and y you will get ‘a’.

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