If a man pulls a trolly by applying force of 50N and trolly is displaced 30m. What is work done?

Answer: Option A

To calculate the work done by the man in pulling the trolley, we'll use the formula:
Work (W) = Force (F) * Displacement (d) * cos(θ)
Where:
F = Force applied (50N)
d = Displacement (30m)
θ = Angle between the direction of force and the direction of displacement (assuming the force is applied in the direction of displacement, so cos(θ) = 1)
Plugging the given values into the formula:
W = 50N * 30m * 1
W = 1500J
Therefore, the correct answer is Option A: 1500J.