Problem $11.$ A hydraulic press has a ram of $200$ mm diameter and a plunger of $30$ mm diameter. It is used for lifting a weight of $3$ kN$.$ If in a lever is used for applying force on the plunger, find the force required at the end of the lever if the ratio l$/$L is $1/10.$ A hydraulic press has a ram of $200$ mm diameter and a plunger of $30$ mm diameter. It is used for lifting a weight of $3$ kN$.$ If in a lever is used for applying force on the plunger, find the force required at the end of the lever if the ratio l$/$L is $1/10.$A hydraulic press has a ram of $200$ mm diameter and a plunger of $30$ mm diameter. It is used for lifting a weight of $3$ kN$.$ If in a lever is used for applying force on the plunger, find the force required at the end of the lever if the ratio l$/$L is $1/10.$