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In figure the uniform gate weights 300N ...

In figure the uniform gate weights `300N` and is `3m` wide `& 2m` high. It is supported by a hinge at the bottom left corner and a horizontal cable at the top left corner, as shown. Find `:`
`(a)` the tension in the cable and
`(b)` the force that the hinge exerts on the gate `(` magnitude `&` direction `)`.

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