Final answer:
The power developed by the 900 N force is approximately 3600 W.
Step-by-step explanation:
Power is defined as the rate at which work is done or energy is transferred. In this case, the power developed by the force is equal to the product of the force and the velocity at which the work is done:
P = F x v
Given that the force is 900 N and the velocity is 4 m/s, the power developed by the force is:
P = 900 N x 4 m/s = 3600 W
Therefore, the power developed by the 900 N force is approximately 3600 W.