Final answer:
To find the rate at which the lawn mower accelerates to the right, use Newton's second law of motion: F = ma.
Step-by-step explanation:
The net force on a lawn mower is 51 N to the right. To find the rate at which the lawn mower accelerates to the right, we can use Newton's second law of motion, which states that the net force acting on an object is equal to the mass of the object multiplied by its acceleration.
F = ma
In this case, the net force is 51 N and the mass of the lawn mower is given. Solving for the acceleration:
a = F/m = 51 N / m
Therefore, the rate at which the lawn mower accelerates to the right is 51 N divided by the mass of the lawn mower.