A crane is able to lift very heavy objects because
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The arm which lifts the load is Build as longer. We know that torque produced by a heavy load lifted by the crane is counterbalanced by its heavy body. The lengthy moment arm enables the machine to exert low force to lift the load. Both these factors help the craneto lift heavy weight without toppling itself.
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it has the energy needed to lift the object...
The generally accepted definition of a crane is a machine for lifting and moving heavy objects by means of ropes or cables suspended from a movable arm. As such, a liftingmachine that does not use cables, or else provides only vertical and not horizontal movement, cannot strictly be called a 'crane'.
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The generally accepted definition of a crane is a machine for lifting and moving heavy objects by means of ropes or cables suspended from a movable arm. As such, a liftingmachine that does not use cables, or else provides only vertical and not horizontal movement, cannot strictly be called a 'crane'.
PLS MARK MY ANSWER AS BRILLIANEST
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