Answer:
To solve this problem, we can use the formula:
Work = Force x Distance x cos(theta)
where Work is the amount of work done on the pizza, Distance is the distance the pizza is lifted, theta is the angle between the force and the displacement, and cos(theta) is the cosine of the angle between the force and displacement.
We are given that the work done on the pizza is 116 kJ, the distance the pizza is lifted is 3.85 cm (which is 0.0385 m), and the angle between the force and the displacement is 0 degrees (since the force is applied in the same direction as the displacement).
Plugging in these values, we get:
116 kJ = Force x 0.0385 m x cos(0)
Simplifying and converting the units of work to joules, we get:
116,000 J = Force x 0.0385 m
Solving for Force, we get:
Force = 116,000 J / 0.0385 m
Force = 3,012,987.01 N
Therefore, the delivery man exerts a force of approximately 3,012,987.01 Newtons on the pizza to lift it 3.85 cm higher.