A 6-kg block rests on a horizontal surface. Its coefficient of kinetic friction is 0.22. The block is connected by a string passing over a pulley to a 3-kg mass. (a) What is the acceleration of the system? (b) What is the tension in the string?

Consider the following arrangement of masses: Mass 1 is connected to mass 2 by a very light string and moves over a frictionless pulley so that both masses move with the same speed and move the same distances (?2 to the right a distance ? and ?1 down a distance ?).Assume ?1 = 15 ??, ?2 = 15 ??, and the coefficient of kinetic friction between ?2 and the table is ?? = 0.73. Let the masses start with an initial speed of 1.00 m/s. What is their speed after moving 1.00 cm (? = 0.0100 ?)?

Two objects with masses of 2.55 kg and 4.15 kg are connected by a light string that passes over a light frictionless pulley to form an Atwood machine. (a) Determine the tension in the string. (b) Determine the acceleration of each object. (c) Determine the distance each object will move in the first second of motion if they start from rest.

A 35-kg child rides on a 10-kg bicycle with 500-mmdiameter wheels. Determine the horizontal force necessary to push the child and bicycle On a level sidewalk.Neglect all friction except rolling resistance.