Answer :
Final answer:
The horizontal force needed to pull the sled across a level surface with a coefficient of friction of 0.384 is 38.4N.
Explanation:
To calculate the horizontal force needed to pull the sled across a level surface, we can use the equation for the force of friction:
Force of friction = coefficient of friction * normal force
In this case, the coefficient of friction is given as 0.384 and the normal force is equal to the weight of the sled, which is 100N.
Substituting these values into the equation, we get:
Force of friction = 0.384 * 100N = 38.4N
Therefore, the horizontal force needed to pull the sled across the level surface is 38.4N.
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