Final answer:
The work required to lift a 5 kg object 2 m above the ground is 98 J.
Step-by-step explanation:
The work done to lift an object can be calculated using the formula:
Work = Force x Distance
In this case, the force exerted on the object is equal to its weight, which is the product of its mass and the acceleration due to gravity (9.8 m/s^2).
So, the work required to lift a 5 kg object 2 m above the ground is:
Work = (5 kg) x (9.8 m/s^2) x (2 m) = 98 J
Therefore, the correct answer is 98 J.