Who much pressure is required to lift the 50kg?

To lift a 50 kg object, you need to exert a force equal to its weight, which is calculated using the formula: weight = mass × gravity (approximately 9.81 m/s²). Therefore, the force required is about 490.5 Newtons (N). If you are applying this force through a specific area, you can calculate the pressure using the formula: pressure = force/area. The actual pressure needed will depend on the area over which the force is applied.