Why Isn't the Normal Force on the Sled 250 N?

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The normal force on the sled is not 250 N because it is influenced by the incline of the hill. The sled's weight, calculated as 250 N, is distributed into components due to the 15-degree slope. As the sled moves down the incline at a constant speed, the normal force acts perpendicular to the surface and is less than the full weight. The actual normal force can be determined by calculating the cosine component of the weight relative to the incline. Therefore, the normal force is a fraction of the sled's weight, not the full 250 N.
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Homework Statement


The question is: An empty sled of mass 25 kg slides down a hill with constant speed of 2.4 m/s. The slope of the hill is inclined at an angle of 15 degrees

How come the normal force of the sled is NOT 250 N?

Homework Equations

 
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Assuming here g= 10 N/kg, the weight is 250N.

However since the mass is moving down an incline at 15 degrees, the normal force will be a component of the weight i.e. a fraction of the weight.
 

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