Respuesta :
441 Newton force is required in order to lift an object having 45 kg mass.
What is force?
Force
We know that force is the product of mass and acceleration for those objects that move horizontally while on the other hand, those objects that moves vertically we use force of gravity instead of acceleration. In this example we use the formula of force which is equals to force = mass x gravity.
The mass of the object is given which is 45 kg whereas the value of gravity is 9.8 meter/ second square so when we multiply both mass and gravity we get the force which is needed to lift the mass of the body i.e. 45 kg.
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