Final answer:
To find the net force on the block, calculate its acceleration as it slides down the incline, and then multiply by the block's mass.
Step-by-step explanation:
The student's question pertains to finding the net force acting on a block sliding down an incline. To solve for the net force, you must first recognize that the net force is the product of the block's mass (m) and its acceleration (a). Since the block starts from rest and slides a certain distance down the incline within a given time, we can use kinematic equations to find the acceleration. The acceleration can then be multiplied by the mass of the block to find the net force. It's also important to consider the component of gravity acting along the incline, which can be calculated using the gravitational force (mg) and the sine of the angle of the incline (θ).