Final Answer:
The force of kinetic friction acting on the cart is F_k = μ_k * N, where μ_k is the coefficient of kinetic friction and N is the normal force exerted on the cart. Without specific values for these variables, the exact force in Newtons can't be determined.
Step-by-step explanation:
The force of kinetic friction, represented as F_k, is determined by the product of the coefficient of kinetic friction (μ_k) and the normal force (N). The coefficient of kinetic friction signifies the frictional force between two surfaces in motion. The normal force represents the perpendicular force exerted by a surface on an object in contact with it. This force opposes the motion of the cart and can be calculated using the formula F_k = μ_k * N.
For a comprehensive calculation, the coefficient of kinetic friction and the normal force need to be known. The coefficient of kinetic friction is specific to the materials in contact and can vary significantly. It's determined through experimentation or provided within the question context. The normal force relies on the weight of the cart and the surface it rests upon, calculated as the product of the mass of the cart and the acceleration due to gravity, unless other forces are acting vertically.
To accurately find the force of kinetic friction in Newtons, the exact values of the coefficient of kinetic friction and the normal force must be provided or inferred from the given scenario or context. Without these specific values, a precise numerical answer cannot be derived.
In summary, the force of kinetic friction acting on the cart is contingent on the coefficient of kinetic friction and the normal force. To calculate this force accurately, precise numerical values for these variables are essential. The formula F_k = μ_k * N provides a means to determine the force of kinetic friction once these values are known or provided.