Question

If the mass of an object is 2500, what is the minimum force required to lift it, if the net force applied to the object is -6?

Answer 1

Answer : F = 24494 N

Explanation :

It is given that,

mass of object,
`m=2500 Kg`

net force on object,
`\sum F=-6\ N`

Net force is equal to the sum of forces acting on the object,

On lifting the object, two forces will act i.e. its weight and the muscular force

Let F is the minimum force required to lift the object.

`F_(net)=mg+F`

`-6=F-mg` (since both forces are acting in opposite directions)

`-6=F-2500\ Kg* 9.8\ m/s^2`

`F=24494\ N`

Hence, to lift the object minimum force of 24494 N is required.