Final answer:
The force exerted on the sled by the hill is known as the normal force, which is equal to the weight of the sled. The formula to calculate the normal force is Normal Force (N) = Mass (kg) x Acceleration due to gravity (m/s^2).
Step-by-step explanation:
The force exerted on the sled by the hill is known as the normal force. The normal force is the perpendicular force exerted by a surface to support an object. In this case, the hill exerts a normal force on the sled to prevent it from sinking into the hill. The magnitude of the normal force is equal to the weight of the sled, which can be calculated using the formula:
Normal Force (N) = Mass (kg) x Acceleration due to gravity (m/s^2)