A block of mass 2.00 kg rests on a horizontal surface where the coefficient of kinetic friction between the two is 0.200.A string attached to the block is pulled horizontally,resulting in a 2-m/s² acceleration by the block.Find the tension in the string.(g = 9.80 m/s²) A) 4 N B) 3.92 N C) 7.92 N D) 0.08 N E) 2.00 N

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Quizplus · Accepted Answer

The tension in the string is calculated using the formula T = ma + μmg, where m is the mass, a is the acceleration, μ is the coefficient of kinetic friction, and g is the acceleration due to gravity. Substituting the given values: T = (2 kg)(2 m/s²) + (0.2)(2 kg)(9.8 m/s²) = 4 N + 3.92 N = 7.92 N.

A Block of Mass 2