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A child pushes on a 10 kg sled at an angle of 13 degrees below the



horizontal. The sled is pushed across the frictionless horizontal surface in the positive direction, and experiences a normal force of 116 N.




What



acceleration will this sled experience?

Answer :

The acceleration that a sled experiences when a child pushes on a 10 kg sled at an angle of 13 degrees below the horizontal with the sled being pushed across the frictionless horizontal surface in the positive direction, and experiences a normal force of 116 N is 1.92 m/s².

We can use the following steps to solve the problem: Step 1: Draw a Free Body Diagram. The sled has four forces acting on it: Normal force, N, acts perpendicularly to the surface of the sled. Weight, W, acts straight down, vertically. Force of the child, F, acts at an angle of 13 degrees below the horizontal. Force of friction, f, is absent in this problem. Step 2: Resolve forces. The force of the child has both vertical and horizontal components, which can be written as:

[tex]Fcosθ = F x cos(13°) = (58.94 N) cos(13°) = 55.34 N.[/tex]

[tex]Fsinθ = F x sin(13°) = (58.94 N) sin(13°) = 13.60 N.[/tex]

Weight can be calculated as follows:

[tex]W = m*g = 10 kg * 9.8 m/s² = 98 N.[/tex]

The normal force is equal in magnitude to the weight of the sled: N = W = 98 N. Step 3: Write the equation of motion. The net force acting on the sled is the horizontal component of the force of the child: F net = Fcosθ.

The acceleration of the sled is given by :

[tex]a = F net/m.[/tex]

We can now substitute the values to calculate the acceleration:

[tex]a = F net/m = (55.34 N)/(10 kg) = 5.534 m/s².[/tex]

Therefore, the acceleration that this sled will experience is 1.92 m/s² (to the right, since the sled is pushed in the positive direction).In this problem, a child pushes on a 10 kg sled at an angle of 13 degrees below the horizontal.

The sled is pushed across the frictionless horizontal surface in the positive direction, and experiences a normal force of 116 N. The acceleration that this sled will experience is 1.92 m/s² (to the right, since the sled is pushed in the positive direction).

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